Method for measuring shear strength of machinable ceramics
A technology of shear strength and ceramics, which is applied in the direction of testing material strength by applying stable shear force and testing material strength by applying stable tension/compression, which can solve the problem of stress concentration and homogeneous ceramic shear strength. Methods and other issues to achieve the effect of avoiding stress concentration, solving evaluation difficulties, and making sample preparation easy
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0032] Example 1: The thickness effect of the punching method
[0033] One advantage of the indentation shear test is that simple flake samples without shape requirements can produce a series of experimental results, and the indentation shows a good shape without crack branches. figure 2 The sample with the punched hole and the punched disc are displayed. The one marked "A" is punching, and the one marked "B" is punching disc. figure 2 It also shows the shear failure without ejecting the wafer, marked as "C". The small disk "C" embedded in the sample has no obvious concave surface, indicating brittle failure with small shear strain. Shear strength is generally regarded as a material constant. Therefore, in formula (1), the ratio of critical load to sample thickness Pc / h should also be a constant.
[0034] Pc=C·h h≤hc (2)
[0035] Here C is a constant. However, experiments show that this proportional relationship is only valid when the thickness of the sample is lo...
Example Embodiment
[0039] Example 2: Effect of loading rate and punch diameter
[0040] In the indentation shear test, various loading rates were applied to 0.24mm thick Ti 3 AlC 2 The results of plate-shaped sample experiments show that the loading rate has little effect on the experimental results. Figure 7 It shows that the shear strength measured at various punch speeds from 0.05mm / min to 5mm / min is basically at the same level. The reason may be that the machinable ceramic has a slow subcritical crack growth rate, so it is not sensitive to the loading rate.
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2023 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap