GB 11387-1989 Test method for static bending strength of piezoelectric ceramic materials

This standard specifies the static bending strength test method for piezoelectric ceramic materials. This standard is applicable to the measurement of the static bending strength of piezoelectric ceramic materials at room temperature. GB 11387-1989 Static bending strength test method for piezoelectric ceramic materials GB11387-1989 Standard download decompression password: www.bzxz.net

UDC 621.38.032: 666.3: 620.1741.18
National Standard of the People's Republic of China
GB 11387--89
Testing method for static flexural strengthof piezaelectric ceramics
Published on July 4, 1989
National Technical Supervision Bureau
Implemented on January 1, 1990
WNational Standard of the People's Republic of China
Testing method for static flexural strengthof piczuelectrie ceramics
Subject content and scope of application
This standard defines the static measurement test method and standard language of ceramic materials in the air. 11387-89
The bending test is a point-type simple support method. The test is carried out as follows: if the load is concentrated, the specimen will deform and break. 3 specimens
The specimens are prepared according to the product,
The specimen size is small as shown in the figure
Bo load is also +0.5, the specimen is analyzed by the parallelism of the specimen. 0.02mm, polarized, polarized along 3 tracks. Shen Jiyun is from 3 alone, after polarization, place at least 10, the test vehicle does not measure the physical parameters of the specimen! Lian line:
Approved by the State Administration of Technical Supervision in 19890704
Implementation in 199001-01
W.3.3 The number of maintenance specimens is small" 10
Test method
4.1 or inspection and preparation and requirements
GB 11387-B9
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test theft as the original light proof phenomenon
. I force is not small for non-error in the "", the test is not to exceed the ". The maximum fracture of the same, in the test machine with the same amount of reason before 2u: ~ still e
support head in the point will not be the heart of the transmission, the village can not be lower than the "a.wwW.bzxz.Net
support head non-diameter Liu point test age distance Figure 3 small transmission! Excessive response of the original sample, the contact part of the sample surface is not large, iμn.
英具湾临灵率公人：,m
3t.：ho±0.5um;R.2.~5.tmm
b:7 +t.2mm:h:7 lo.2mm:
Use the precision of 0.mm:
4.2 Test steps
4.2.1 Test sample: height of the sample, precision of 0.01mm4.2.2 According to the material 3, the distance from the support to the support is m, from the fulcrum to the support! 4.2.3 The sample should be a linear head, 4.2.4, the test force is half the axis of the sample , the test small flow rate is not lower than 10%, and the test drop is not more than 10% of the maximum sample breaking time
4.3.1 According to the following formula, the sample is still 0
Wu, - static u, MPa+
The maximum pressure when the sample rolls and breaks is:
L-the distance between the test group peaks, mm:
5-the width of the sample, mm
h-the height of the sample, mm.
GB 11387-89
The test result is expressed in the standard deviation with the value of the arithmetic mean at the level of 0. The test report
light bending test report consists of the following components: unit:
sample name, number and polarization
sample bending strength single servant, industry mean value and standard deviation: testing machine model and selected force range, test density temperature,
test period and test person,
additional instructions:
This standard was drafted by the company's professional standard measurement work.
The main drafters of the standard are Luo Lunzhang, Jiqinxian, Sangmingxian, Guo Fugen,.
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