Walter Stefan Harrer

1 - 80 out of 80Page size: 100

Research output

  1. 2024
  2. Published

    The contribution of ceramography to the development of ceramic spark plug electrode materials for large gas engines

    Gruber, M., Melcher, V., Harrer, W. S., Tilz, A., Engelmayer, M., Fimml, W., Wimmer, A. & Bermejo, R., Jan 2024, In: Practical Metallography. 61.2024, 1, p. 4-15 12 p.

    Research output: Contribution to journal › Article › Research › peer-review

  3. Published

    Ceramic materials as an alternative for conventional spark plug electrodes

    Harrer, W. S., Gruber, M., Melcher, V., Tilz, A., Engelmayer, M., Wimmer, A. & Bermejo, R., 2024, In: International journal of applied ceramic technology. 2024, ??? Stand: 30. September 2024, p. 4393-4403

    Research output: Contribution to journal › Article › Research › peer-review

  4. 2023
  5. Published

    Feasibility study on electrically conductive joining of MoSi2 electrodes for spark plugs

    Gruber, M., Tilz, A., Harrer, W. S., Papšík, R., Fimml, W. & Engelmayer, M., 1 May 2023, In: International journal of applied ceramic technology. 2023, p. 3257-3266 10 p.

    Research output: Contribution to journal › Article › Research › peer-review

  6. Published

    A brief guide to conducting failure analysis on ceramic components

    Harrer, W., Morrell, R. & Danzer, R., 2023, In: Practical metallography = Praktische Metallographie. 60, p. 580-593

    Research output: Contribution to journal › Article › Research › peer-review

  7. Published

    Alternative Spark Plug Electrode Materials for Economical, Reliable Engine Operation

    Tilz, A., Gruber, M., Harrer, W., Engelmayer, M., Fimml, W. & Wimmer, A., 2023, Proceedings of the ASME 2023 ICE Forward Conference, ICEF 2023. American Society of Mechanical Engineers(ASME)

    Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  8. 2022
  9. Published

    Development of Ceramic Electrodes for Spark Plugs: Materials Selection

    Harrer, W., Tilz, A., Engelmayer, M., Gruber, M., Danzer, R. & Fimml, W., 2022, In: Ceramic forum international (CFI). 99, 6, p. E1-E6

    Research output: Contribution to journal › Article › Research › peer-review

  10. Published

    Investigation of the influence of alternative spark plug electrode material on ignition behaviour

    Tilz, A., Gruber, M., Harrer, W., Engelmayer, M., Fimml, W., Klawitter, M. & Wimmer, A., 2022, Proc. of Internal Combustion Engine Division Fall Technical Conference - ICEF2022.

    Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  11. 2020
  12. E-pub ahead of print

    Strength of additive manufactured alumina

    Schlacher, J., Lube, T., Harrer, W., Mitteramskogler, G., Schwentenwein, M., Danzer, R. & Bermejo, R., 21 Apr 2020, (E-pub ahead of print) In: Journal of the European Ceramic Society. 40.2020, 14, p. 4737-4745 9 p.

    Research output: Contribution to journal › Article › Research › peer-review

  13. 2019
  14. Published

    Schadensanalyse an einer Kompaktierwalze aus Siliziumnitrid

    Harrer, W., Morrell, R. & Danzer, R., 1 Apr 2019, In: Praktische Metallographie/Practical Metallography. 56.2019, 4, p. 262-275 14 p.

    Research output: Contribution to journal › Article › Research › peer-review

  15. Published

    Festigkeit von additiv gefertigtem Aluminiumoxid

    Lube, T., Schlacher, J. C., Harrer, W. S., Danzer, R., Mitteramslkogler, G. & Schwentenwein, M., 13 Feb 2019.

    Research output: Contribution to conference › Poster › Research › peer-review

  16. 2018
  17. Published

    Mechanische Eigenschaften von gedruckten Keramiken

    Lube, T., Schlacher, J., Harrer, W., Danzer, R., Mitteramskogler, G. & Schwentenwein, M., 2018, Praktische Metallographie Sonderband. Vol. 52. p. 229-234

    Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  18. Published

    Schadensanalyse an einer Kompaktierwalze aus Siliziumnitrid

    Harrer, W., Danzer, R. & Morrell, R., 2018, Praktische Metallographie Sonderband. Vol. 52. p. 267-272

    Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  19. 2017
  20. Published

    Additive Fertigung von Keramiken

    Lube, T. & Harrer, W. S., 13 Nov 2017.

    Research output: Contribution to conference › Poster › Transfer

  21. Published

    Influence of machining and crack healing on the strength of a commercial SiC-ceramic

    Harrer, W. S., Danzer, R. & Prackwieser, R., 12 Jul 2017.

    Research output: Contribution to conference › Poster › Research › peer-review

  22. Published

    Strength of Al2O3-Ceramic Produced by the LCM Additive Manufacturing Technology

    Lube, T., Schlacher, J. C., Harrer, W. S., Mitteramskogler, G., Schwentenwein, M. & Danzer, R., 12 Jul 2017.

    Research output: Contribution to conference › Poster › Research › peer-review

  23. Published

    Influence of Surface Damage and Residual Stress on Strength of WC-Co Hard Metals under Biaxial Loading Conditions

    Harrer, W. S., Klünsner, T., Supancic, P. H., Jonke, M., Glätzle, J. & Barbist, R., 29 May 2017.

    Research output: Contribution to conference › Poster › Research › peer-review

  24. Published

    Chairside CAD/CAM materials. Part 2: flexural strength testing

    Belli, R., Wendler, M., Petschelt, A., Mevec, D., Lube, T., Harrer, W., Danzer, R. & Lohbauer, U., 2017, In: Dental Materials. 33, 1, p. 99-109 11 p.

    Research output: Contribution to journal › Article › Research › peer-review

  25. Published

    Fractography of zirconia-specimens made using additive manufacturing (LCM) technology

    Harrer, W. S., Schwentenwein, M., Lube, T. & Danzer, R., 2017, In: Journal of the European Ceramic Society. 37, p. 4331-4338

    Research output: Contribution to journal › Article › Research › peer-review

  26. Published

    Influence of surface damage and residual stress on strength of WC-Co hard metals under biaxial loading conditions

    Harrer, W., Klünsner, T., Jonke, M., Supancic, P., Glätzle, J. & Barbist, R., 2017

    Research output: Non-textual form › Web publication/site › Research

  27. Published

    Strength of WC-Co hard metals as a function of the effectively loaded volume

    Jonke, M., Klünsner, T., Supancic, P., Harrer, W., Glätzle, J., Barbist, R. & Ebner, R., 2017, In: International journal of refractory metals & hard materials. 64, p. 219-224 6 p.

    Research output: Contribution to journal › Article › Research › peer-review

  28. Published

    Strength Optimisation of a Zirconia-Ceramic Made Using Additive Manufacturing (LCM)-Technology

    Harrer, W., Schwentenwein, M. & Danzer, R., 2017, In: Ceramic forum international (CFI). 94, 10, p. E49-E54

    Research output: Contribution to journal › Article › Research › peer-review

  29. 2016
  30. Published

    Biaxial strength testing of dental CAD/CAM block materials

    Wendler, M., Belli, R., Petschelt, A., Mevec, D., Harrer, W., Lube, T., Danzer, R. & Lohbauer, U., 2016.

    Research output: Contribution to conference › Poster › Research › peer-review

  31. Published

    Influence of the surface condition on the biaxial strength of a commercial silicon carbide

    Harrer, W., Danzer, R. & Rendtel, A., 2016, In: Journal of the European Ceramic Society. 36, p. 3895-3900 6 p.

    Research output: Contribution to journal › Article › Research › peer-review

  32. Published

    Mechanical properties of carbon brushes for electric engines

    Harrer, W., Reynvaan, S., Krautgasser, C. & Danzer, R., 2016, In: Ceramic forum international (CFI). 93, 4-5, p. E55-E60

    Research output: Contribution to journal › Article › Research › peer-review

  33. 2015
  34. Published

    Schadensanalyse an einem keramischen keramischen Kugellager

    Harrer, W., Deluca, M. & Morrell, R., 8 Apr 2015, p. 1 - 1. 1 p.

    Research output: Contribution to conference › Poster › Research › peer-review

  35. Published

    Heat Treatment-Induced Improvement of the Thermal Shock Resistance of Si3N4 Tools for Metallurgical Applications

    Harrer, W., Danzer, R. & Berroth, K., 2015, In: Practical metallography = Praktische Metallographie. 52, 4, p. 191-204 14 p.

    Research output: Contribution to journal › Article › Research › peer-review

  36. 2014
  37. Published

    Verbesserung der Thermoschockbeständigkeit von Si3N4-Werkzeugen für metallurgische Anwendungen durch eine Wärmebehandlung

    Harrer, W., 17 Sept 2014.

    Research output: Contribution to conference › Presentation › Research

  38. Published

    Ber-34-2014-RoLiCer: RoLiCer Deliverable 6.3: Optimal surface finish for ceramic balls

    Lube, T., Harrer, W. & Vieillard, C., 2014

    Research output: Book/Report › Commissioned report › Transfer

  39. Published

    Ber-35-2014-ELTSECCS: Deliverable: 4.1 Materialparameter als Funktion unterschiedlicher Betriebsbedingungen

    Lube, T. & Harrer, W., 2014

    Research output: Book/Report › Commissioned report › Transfer

  40. Published

    Ber-57-2014-RoLiCer: RoLiCer Deliverable 5.6: Industrial Field test: Wire Rolling Analysis and documentation

    Harrer, W. & Lube, T., 2014

    Research output: Book/Report › Commissioned report › Transfer

  41. Published

    Failure analysis of a ceramic ball race bearing made of Y-TZP zirconia

    Harrer, W., Deluca, M. & Morrell, R., 2014, In: Engineering Failure Analysis. p. 262-268

    Research output: Contribution to journal › Article › Research › peer-review

  42. Published

    Fractography of biaxial tested Si3N4-specimens

    Harrer, W., Morrell, R. & Danzer, R., 2014, In: Journal of the European Ceramic Society. 34, p. 3283-3289

    Research output: Contribution to journal › Article › Research › peer-review

  43. Published

    Verbesserung der Festigkeit von Sliziumnitrid-Bauteilen

    Harrer, W., 2014.

    Research output: Contribution to conference › Poster › Research › peer-review

  44. Published

    Verbesserung der Thermoschockbeständigkeit von Si3N4-Werkzeugen für metallurgische Anwendungen durch eine Wärmebehandlung

    Danzer, R., Harrer, W. & Berroth, K., 2014, Praktische Metallographie Sonderband. p. 175-180

    Research output: Chapter in Book/Report/Conference proceeding › Chapter › Research

  45. 2013
  46. Published

    Oberflächenzustand und Festigkeit von kommerziellem Siliziumnitrid

    Harrer, W. S., 2013, 162 p.

    Research output: Thesis › Doctoral Thesis

  47. 2012
  48. Published

    Effect of Crack Healing on the Strength of a Si3N4-Material used for Applications in the Metallurgical Industry

    Harrer, W., Danzer, R. & Berroth, K., 2012, In: Ceramic forum international (CFI). 89, p. E29-E33

    Research output: Contribution to journal › Article › Research › peer-review

  49. Published

    Erhöhung der Thermoschockbeständigkeit von Siliziumnitrid

    Harrer, W., 2012.

    Research output: Contribution to conference › Poster › Research › peer-review

  50. Published

    Influence of surface defects on the biaxial strength of a silicon nitride ceramic - increase of strength by crack healing

    Harrer, W., Danzer, R. & Morrell, R., 2012, In: Journal of the European Ceramic Society. 32, p. 27-35

    Research output: Contribution to journal › Article › Research › peer-review

  51. Published

    Thermal Shock Behaviour of Si3N4-Specimens - Influence of Annealing and Edges

    Harrer, W., Danzer, R. & Berroth, K., 2012, Fractography of Glasses and Ceramics VI. p. 245-254

    Research output: Chapter in Book/Report/Conference proceeding › Chapter › Research

  52. 2011
  53. Published

    Bruch von Keramiken aufgrund von Kontaktschädigung am Beispiel von Hüftgelenksimplantaten

    Danzer, R., Harrer, W. & Lube, T., 2011, Tagungsskript 10. Tagung Gefüge und Bruch. p. 127-133

    Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  54. Published

    Einfluss von Oberflächendefekten auf die biaxiale Festigkeit von Hochleistungskeramiken-Festigkeitssteigerung durch Rissheilen

    Harrer, W. & Danzer, R., 2011.

    Research output: Contribution to conference › Poster › Research › peer-review

  55. Published

    Failure analysis of silicon nitride rings for hot rolling of highly alloyed steel and superalloys

    Harrer, W., Morrell, R., Lengauer, M., Danzer, R., Berroth, K. & Zleppnig, W., 2011, In: Engineering Failure Analysis. p. 138-147

    Research output: Contribution to journal › Article › Research › peer-review

  56. Published

    Influence of Surface Quality on the Biaxial Strength of silicon Nitride Specimens

    Harrer, W., Danzer, R. & Supancic, P., 2011, In: Practical metallography = Praktische Metallographie. 48, p. 515-526

    Research output: Contribution to journal › Article › Research › peer-review

  57. Published

    Keramik im Walzwerk

    Danzer, R., Harrer, W. & Lengauer, M., 2011, XXX. Verformungskundliches Kolloquium. p. 51-56

    Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  58. 2010
  59. Published

    Influence of Surface Quality on the biaxial Strength of Silicon Nitride

    Harrer, W., Danzer, R. & Supancic, P., 2010, In: Practical metallography = Praktische Metallographie. 42, p. 141-146

    Research output: Contribution to journal › Article › Research › peer-review

  60. Published

    Meso-Scale Mechanical Testing Methods for Diamond Composite Materials

    Morrell, R., Danzer, R., Supancic, P., Harrer, W., Puchegger, S. & Peterlik, H., 2010, In: International journal of refractory metals & hard materials. 28, p. 508-515

    Research output: Contribution to journal › Article › Research › peer-review

  61. Published

    Si3N4/SiC Materials based on Preceramic Polymers and Ceramic Powders

    Degenhardt, U., Motz, G., Krenkel, W., Stegner, F., Berroth, K., Harrer, W. & Danzer, R., 2010, Advances in Sintering Science and Technology. p. 379-387

    Research output: Chapter in Book/Report/Conference proceeding › Chapter › Research

  62. 2009
  63. Published

    Application of the Ball in Three Balls Test in the Development of a High Strength Partially Stabilised Zirconia Ceramic

    Danzer, R., Harrer, W. & Wagner, R., 2009, In: Ceramic forum international (CFI). 86, p. E50-E53

    Research output: Contribution to journal › Article › Research › peer-review

  64. Published

    Der 4-Kugelversuch zur Ermittlung der biaxialen Biegefestigkeit spröder Werkstoffe

    Danzer, R., Supancic, P. & Harrer, W., 2009, Technische keramische Werkstoffe. p. 1-48

    Research output: Chapter in Book/Report/Conference proceeding › Chapter › Research

  65. Published

    Failure Investigation of Forming Rolls made of Si3N4

    Morrell, R., Harrer, W., Danzer, R. & Berroth, K., 2009, Key engineering materials. Vol. 413. p. 304-307 (Key engineering materials).

    Research output: Chapter in Book/Report/Conference proceeding › Chapter › Research

  66. Published

    Festigkeit und Einsatzgrenzen keramischer Drahtwalzen

    Danzer, R., Harrer, W. & Lengauer, M., 2009, Tagungsband zum Fachsyposium "Keramik für die Walztechnik". p. 95-112

    Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  67. Published

    Influence of the Sample Size on the Results of B3B-Tests

    Harrer, W., Danzer, R., Supancic, P. & Lube, T., 2009, Key engineering materials. Vol. 409. p. 176-184 (Key engineering materials).

    Research output: Chapter in Book/Report/Conference proceeding › Chapter › Research

  68. Published

    Schadensanalyse

    Harrer, W., 2009.

    Research output: Contribution to conference › Poster › Research › peer-review

  69. Published

    Schadensanalyse an Profilwalzen aus Siliziumnitrid

    Harrer, W., Morrell, R., Danzer, R. & Berroth, K., 2009, 9. Tagung Gefüge und Bruch. p. P18-P18

    Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  70. Published

    Schadensanalyse an Profilwalzen aus Siliziumnitrid

    Harrer, W., Morrell, R., Danzer, R. & Berroth, K., 2009.

    Research output: Contribution to conference › Poster › Research › peer-review

  71. Published

    Strength Tests on Silicon Nitride Balls

    Supancic, P., Danzer, R., Harrer, W., Wang, Z., Witschnig, S. & Schöppl, O., 2009, Key engineering materials. Vol. 413. p. 193-200 (Key engineering materials).

    Research output: Chapter in Book/Report/Conference proceeding › Chapter › Research

  72. 2008
  73. Published

    Ber-10-2008-Bosch

    Supancic, P., Danzer, R., Harrer, W., Kreith, J. & Witschnig, S., 2008

    Research output: Book/Report › Commissioned report › Transfer › peer-review

  74. Published

    Biaxial Strength Testing of a Silicon Nitride Ceramic for Bearing Rolling Elements

    Danzer, R., Harrer, W., Supancic, P., Schöppl, O. & Vieillard, C., 2008

    Research output: Book/Report › Commissioned report › Research

  75. Published

    Biaxial Strength Testing of a Silicon Nitride Ceramic for Bearing Rolling Elements

    Danzer, R., Harrer, W., Supancic, P., Schöppl, O. & Viellard, C., 2008

    Research output: Book/Report › Commissioned report › Research

  76. Published

    Cone Crack Development during Ball on the Three Balls Test

    Chlup, Z., Harrer, W., Kozák, V. & Řehořek, L., 2008, 17th European Conference on Fracture: Multilevel Approach to Fracture of Materials, Components and Structures. p. 2192-2199

    Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  77. Published

    Cone Crack Development during Ball on the Three Balls Test

    Chlup, Z., Harrer, W., Kozak, V. & Rehorek, L., 2008.

    Research output: Contribution to conference › Poster › Research › peer-review

  78. Published

    Einfluss von Kontaktspannungen auf die Bestimmung der Festigkeit im 4-Kugel-Versuch

    Harrer, W., Danzer, R., Supancic, P. & Lube, T., 2008.

    Research output: Contribution to conference › Poster › Research › peer-review

  79. Published

    Failure investigation of forming rolls made of Si3N4

    Harrer, W., Morrell, R., Danzer, R. & Berroth, K., 2008.

    Research output: Contribution to conference › Poster › Research › peer-review

  80. Published

    Influence of Contact Stress on the Determination of Strength in the Ball-on-Three-Balls Test

    Harrer, W., Danzer, R., Supancic, P. & Lube, T., 2008, In: Practical metallography = Praktische Metallographie. 45, p. 18-32

    Research output: Contribution to journal › Article › Research › peer-review

  81. Published

    Neuartige Si3N4 Werkstoffe auf Basis präkeramischer Polymere und keramischer Pulver

    Degenhardt, U., Motz, G., Stegner, F., Berroth, K., Harrer, W. & Danzer, R., 2008.

    Research output: Contribution to conference › Poster › Research › peer-review

  82. Published

    The Ball on Three Balls Test: Strength Testing of Specimens of Different Sizes and Geometries

    Harrer, W., Danzer, R., Supancic, P. & Lube, T., 2008, Proceedings of the 10th International Conference of the European Ceramic Society. p. 1271-1275

    Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  83. 2007
  84. Published

    B-MCL 2007-28

    Harrer, W., Bermejo Moratinos, R., Supancic, P., Kreith, J., Wang, Z. & Danzer, R., 2007

    Research output: Book/Report › Commissioned report › Transfer › peer-review

  85. Published

    Der 4-Kugel-Versuch: Prüfung der Festigkeit scheiben- und plattenförmiger Bauteile

    Danzer, R., Harrer, W., Supancic, P. & Lube, T., 2007.

    Research output: Contribution to conference › Poster › Research › peer-review

  86. Published

    Influence of Contact Damage on Strength and Fractography of Ball on Three Balls Test Specimens

    Danzer, R., Harrer, W., Lube, T. & Supancic, P., 2007, Fractography of Glasses and Ceramics V. p. 203-214

    Research output: Chapter in Book/Report/Conference proceeding › Chapter › Research

  87. Published

    Schadensanalyse an elektrokeramischen Bauteilen

    Supancic, P., Platzer, A., Wang, Z., Harrer, W. & Danzer, R., 2007.

    Research output: Contribution to conference › Poster › Research › peer-review

  88. Published

    Schadensanalyse an elektronischen Bauteilen

    Supancic, P., Platzer, A., Wang, Z., Harrer, W. & Danzer, R., 2007.

    Research output: Contribution to conference › Poster › Research › peer-review

  89. Published

    Silicon Nitride Tools for Hot rolling of High Alloyed Steel and Superalloy Wires - Load analysis and First Practical Tests

    Danzer, R., Lengauer, M., Zleppnig, W. & Harrer, W., 2007, In: International journal of materials research : IJMR ; Zeitschrift für Metallkunde. 98, p. 1104-1114

    Research output: Contribution to journal › Article › Research › peer-review

  90. Published

    The Ball on three Balls Test - Strength and Failure Analysis of Different Materials

    Danzer, R., Harrer, W., Supancic, P., Lube, T., Wang, Z. & Boerger, A., 2007, In: Journal of the European Ceramic Society. 27, p. 1481-1485

    Research output: Contribution to journal › Article › Research › peer-review

  91. 2006
  92. Published

    Biaxial Strength Testing on Mini Specimens

    Danzer, R., Supancic, P., Harrer, W., Lube, T. & Börger, A., 2006, Fracture of Nano and Engineering Materials and Structures. Springer, p. 589-590

    Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  93. Published

    Biaxial Tensile Strength Test for Brittle Rectangular Plates

    Danzer, R., Supancic, P. & Harrer, W., 2006, In: Journal of the Ceramic Society of Japan. 114, p. 1054-1060

    Research output: Contribution to journal › Article › Research › peer-review

  94. Published

    Einfluss von Kontaktspannungen auf die Bestimmung der Festigkeit im 4-Kugelversuch

    Danzer, R., Harrer, W., Supancic, P. & Lube, T., 2006, Fortschritte in der Metallographie. Werkstoff-Informationsges., p. 487-494

    Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  95. Published

    Festigkeitsprüfung scheiben- und plattenförmiger Bauteile

    Harrer, W., 2006.

    Research output: Contribution to conference › Poster › Research › peer-review

  96. Published

    OFC-Oxide Fiber Composites

    Cetinel, A. F., Kolb, S., Rabenstein, M., Harrer, W. & Simon, R., 2006.

    Research output: Contribution to conference › Poster › Research › peer-review

  97. 2005
  98. Published

    Failure Analysis of Si3N4 Rolls for Hot Wire Rolling - Numerical Anaysis of Thermal and Mechanical Stresses

    Danzer, R., Lengauer, M., Rubesa, D., Harrer, W. & Zleppnig, W., 2005, Key engineering materials. Vol. 290. p. 94-101 (Key engineering materials).

    Research output: Chapter in Book/Report/Conference proceeding › Chapter › Research

  99. Published

    Strength and Fractography of Piezoceramic Multilayer Stacks

    Supancic, P., Wang, Z., Harrer, W. & Danzer, R., 2005, Key engineering materials. Vol. 290. p. 46-53 (Key engineering materials).

    Research output: Chapter in Book/Report/Conference proceeding › Chapter › Research

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