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GB/T 42667-2023: Test method for equibiaxial flexural strength of fine ceramics at room temperature - Ring-on-ring method
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 42667-2023 | English | 269 |
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Test method for equibiaxial flexural strength of fine ceramics at room temperature - Ring-on-ring method
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GB/T 42667-2023
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Basic data | Standard ID | GB/T 42667-2023 (GB/T42667-2023) | | Description (Translated English) | Test method for equibiaxial flexural strength of fine ceramics at room temperature - Ring-on-ring method | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | Q32 | | Classification of International Standard | 81.060.30 | | Word Count Estimation | 14,150 | | Date of Issue | 2023-08-06 | | Date of Implementation | 2024-03-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 42667-2023: Test method for equibiaxial flexural strength of fine ceramics at room temperature - Ring-on-ring method
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 81.060.30
CCSQ32
National Standards of People's Republic of China
Room temperature isobiaxial bending of fine ceramics
Strength test method double loop method
Published on 2023-08-06
2024-03-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration Committee
Foreword
This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents"
Drafting.
This document is modified using ISO 17167.2018 "Fine Ceramics (Advanced Ceramics, Advanced Technology Ceramics)". The room temperature mechanical properties adopt double standards.
Determination of bending strength by ring method.
Compared with ISO 17167.2018, this document has many structural adjustments. Comparison list of structure number changes between the two files
See Appendix A.
Compared with ISO 17167.2018, there are many technical differences between this document and the clauses involved in the outer margin of the page.
Single lines (︱) are marked. A list of these technical differences and their causes is provided in Appendix B.
This document has made the following editorial changes.
---In order to coordinate with the existing standards, the name of the standard is changed to "Test Method for Biaxial Bending Strength of Fine Ceramics at Room Temperature and Double Ring Method";
---Deleted the notes 3.1 and 7.2 in ISO 17167.2018;
---Deleted Note 1 and Note 3 of Chapter 8 in ISO 17167.2018;
---Added Appendix A (informative) "List of comparison of structure numbers between this document and ISO 17167.2018";
---Added Appendix B (informative) "List of technical differences between this document and ISO 17167.2018 and their reasons".
Please note that some content in this document may be subject to patents. The publisher of this document assumes no responsibility for identifying patents.
This document is proposed by China Building Materials Federation.
This document is under the jurisdiction of the National Industrial Ceramics Standardization Technical Committee (SAC/TC194).
This document was drafted by. Shanghai Institute of Ceramics, Chinese Academy of Sciences, Xiamen Institute of Metrology, Verification and Testing, Tianjin Chuang Thermal Conductive Materials Co., Ltd.
Division, Guozhuang New Material Technology (Jiangsu) Co., Ltd., Shandong Guoca Functional Materials Co., Ltd., Lanzhou Chemical Physics Research Institute of the Chinese Academy of Sciences
Institute, Guangdong Advanced Ceramic Materials Technology Co., Ltd., Zhejiang Litai Composite Materials Co., Ltd., Xi'an Xinyao Ceramic Composite Materials Co., Ltd.
Co., Ltd., Institute of Metal Research, Chinese Academy of Sciences, Shandong Industrial Ceramics Research and Design Institute Co., Ltd., Guangzhou Chuangtian Electronic Technology Co., Ltd., Wuhan
Han University of Science and Technology, Loudi Andias Electronic Ceramics Co., Ltd., Zhejiang Jiakang Electronics Co., Ltd., Guangdong Nanfang Hongming Electronic Technology
Co., Ltd., Guizhou Provincial Building Materials Product Quality Inspection and Testing Institute.
The main drafters of this document. Wang Xingang, Wang Xiaofei, Wu Yongqing, Kang Pinchun, Xia Xiayun, Zhang Weiguo, Bai Guangshan, Zhang Guangdong, Zheng Peng, Wang Ming,
Jiang Danyu, Ma Xiaomin, Xu Shanshan, Zhang Yongsheng, Su Yunfeng, Qiu Jihua, Lin Wensong, Li Jianzhang, Wang Jingyang, Chen Changzhu, Cui Shuang, Zhao Junbin, Wu Hao,
Sun Huajun, Deng Tengfei, Kang Dinghua, Wang Zhen, Luo Shiyong.
Room temperature isobiaxial bending of fine ceramics
Strength test method double loop method
1 Scope
This document specifies a test method for the biaxial bending strength of fine ceramics using the double-ring method at room temperature.
This document is applicable to the determination of biaxial bending strength of single-phase ceramic materials with an average grain size less than 100 μm. This document also applies
The average grain size (or length) of each phase is less than 100 μm, and biaxial bending of composite phase ceramics reinforced by particles, whiskers and/or discontinuous fibers
Determination of bending strength.
2 Normative reference documents
The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, the dated quotations
For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to
this document.
GB/T 16825.1 Inspection and calibration of static uniaxial testing machines for metallic materials Part 1.Tensile and/or compression testing machines
Inspection and calibration of force systems (GB/T 16825.1-2022, ISO 7500-1.2018, IDT)
GB/T 40005 Weibull statistical analysis method for strength data of fine ceramics (GB/T 40005-2021, ISO 20501.
2019,MOD)
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
σrr
The test sample is subjected to linear elastic and other biaxial bending loads through the double-loop method, and the maximum stress at which the sample breaks and fails.
4 Principles
A disk-shaped sample of equal thickness is placed between two concentric rings of different diameters, and a load perpendicular to the plane of the sample is applied.
The equibiaxial bending strength of the sample was calculated based on the sample fracture load, sample geometry, and Poisson's ratio of the sample material.
5 Meaning and use
This document is used for materials development and characterization, quality control, and materials design. The material being tested is elastically uniform and isotropic, and has linear
Stress-strain properties. The strength of the disc-shaped sample was calculated based on its linear elastic bending properties. The strength test results are determined by the microstructure of the material, the sample
It is determined by various factors such as product surface processing procedures, sample size and shape, loading rate and environmental relative humidity. As described in this document, the
For many purposes, the results of a strength test can be described in terms of mean and standard deviation. The test results can be compiled in accordance with GB/T 40005
Design analysis to meet material design.
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