Influences of evaluation methods and testing load on microhardness and Young's modulus of ZTA and ATZ ceramics
Source abstract
Abstract
In thiswork,microindentationtestsunderdifferentconditionswereperformedtodeterminetheinfluenceofindentationloadon Young's modulusandmicrohardnessofZrO2 reinforced withAl2O3 particles (ATZ)andAl2O3 reinforced withZrO2 particles (ZTA). Microhardness ofATZandZTAmaterialswasmeasuredusingtraditionalVickersandinstrumentedmicrohardnessmethodsat500, 1000, 1500and2000mNloads.Asfortheinstrumentedmethod,Vickersmicrohardnesswascalculatedfromtheforce-indentationdepth curves byanalyzingtheunloadingsegments,accordingtotheOliver-Pharrmethod.Inthiswaythepossibledifferencesbetweenthetwo methods werecalculated.Furthermore,Young'smodulusateachloadwascalculatedusingtheinstrumentalmethod. The maindifferencesbetweenthetwomethodswereanalyzed,andtheinfluenceoftheloadonthedefinitionofYoung'smodulusin the caseoftheinstrumentalmethodwasstudied.Theresultsindicatedanindentationloadeffectforbothmaterials,ashardnessand Young's modulusincreasebydecreasingtheindentationload
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Metal and Thin Film Mechanics · Advanced ceramic materials synthesis · Advanced Surface Polishing Techniques
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (23)
Show source-provided references
1. Venner fracture in implant-supported metal-ceramic restorations: part I: overall success rate and impact of occlusal guidance
2. Stabilized zirconia as a structural ceramic: an overview10.1016/j.dental.2007.05.005 ↗
3. State of the art of zirconia for dental applications10.1016/j.dental.2007.05.007 ↗
4. What future for zirconia as a biomaterial?10.1016/j.biomaterials.2005.07.034 ↗
5. Crack growth resistance of alumina, zirconia and zirconia toughened alumina ceramics for joint prostheses10.1016/S0142-9612(01)00206-X ↗
6. Use of the scanning electron microscope in microhardness testing of high-hardness materials
7. Instrumented Indentation Test for Advanced Technical Ceramics10.1016/S0955-2219(01)00433-2 ↗
8. Martens · 1898
9. Hardness measured with traditional vickers and martens hardness methods10.1016/j.dental.2006.10.001 ↗
10. Influence of low indentation load on Young's modulus and hardness of 4mol% Y2O3–ZrO2 by nanoindentation10.1016/j.jallcom.2006.01.086 ↗
11. Nanoindentation hardness of submicrometer alumina ceramics10.1016/S0921-5093(00)01818-9 ↗
12. An improved technique for determining hardness and elastic modulus using load and displacement sensing indentation experiments10.1557/JMR.1992.1564 ↗
13. ISO 14577, Metallic materials—instrumented indentation test for hardness and materials parameters, International Organization for Standardization, Geneva, Switzerland, 2002.
14. ASTM E 112—standard test methods for determining average grain size, 229–251.
15. Indenter Surface area and hardness determination by means of a FEM-supported simulation of nanoindentation10.1016/j.tsf.2005.08.206 ↗
16. Depth sensing hardness in sapphire and in sintered sub-μm alumina10.1016/S0263-4368(01)00036-1 ↗
17. Chemical treatment on alumina–zirconia composites inducing apatite formation with maintained mechanical properties10.1016/j.jeurceramsoc.2011.12.020 ↗
18. Effective elastic properties of alumina–zirconia composite ceramics
19. A new look at the influences of load, grain size, and grain boundaries on the room temperature hardness of ceramics10.1016/S0263-4368(98)00056-0 ↗
20. Controlled indentation: a general approach to determine mechanics properties of brittle materials10.1016/1359-6454(95)00196-4 ↗
21. Influences of pileup on the measurement of mechanical properties by load and depth sensing indentation10.1557/JMR.1998.0146 ↗
22. Simplified area function for sharp indenter tips in depth-sensing indentation10.1557/JMR.2002.0169 ↗
23. Characterization of hot pressed silicon nitride based materials by microhardness measurements