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In-situ measuring apparatus for high temperature distortion ceramic fiber

A high-temperature deformation, in-situ measurement technology, applied in measuring devices, using optical devices, and applying stable tension/pressure to test the strength of materials, etc., can solve the problems of low test temperature and inaccurate strain measurement, and achieve strain measurement. Accurate, simple installation and high reliability

Inactive Publication Date: 2007-05-16
XIAMEN UNIV
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Problems solved by technology

[0007] At present, the UH-1 series ultra-high temperature material testing machine produced by Shimadzu Corporation in Japan uses a non-contact extensometer for in-situ strain measurement, but the maximum test temperature can only be 300°C (vacuum, inert gas), while Using a contact extensometer, although the temperature can reach 1200°C, it can only measure metal materials, so it also has the disadvantages of low test temperature and inaccurate strain measurement

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  • In-situ measuring apparatus for high temperature distortion ceramic fiber
  • In-situ measuring apparatus for high temperature distortion ceramic fiber
  • In-situ measuring apparatus for high temperature distortion ceramic fiber

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Embodiment Construction

[0024] The structure and working principle of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0025] Referring to Figures 1-3, the in-situ measurement device for the deformation of ceramic fiber samples under high-temperature atmosphere protection consists of a high-temperature atmosphere furnace treatment system 1 and a high-precision optical measurement system 2.

[0026] The high-temperature atmosphere furnace processing system consists of a double furnace structure. The main function of the inner furnace 11 is to ensure high temperature, and the outer furnace 12 ensures the vacuum degree, which fully guarantees the vacuum degree and the airtightness of the inert gas. The inner furnace 11 and the outer furnace 12 are connected and fixed through the metal bracket 125 and the supporting metal ring 127. The two furnaces are placed in the middle of the universal testing machine 13 and fixed on the working platform of the u...

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Abstract

This invention relates to original position test device for ceramics fiber high temperature deformation, which comprises high temperature gas furnace process system and optical measurement system, wherein, the former system comprises inner furnace, outer furnace, universal test machine, load sensor, water cooling and sealing system and temperature control device; the later system comprises photoelectrical stretching meter, data collection process system, intervene filter device and strong light source; the high temperature furnace adopts double structure with inner one of high temperature and outer one for vacuum to ensure the gas sealing property.

Description

technical field [0001] The invention relates to an in-situ measuring device, in particular to a measuring device for studying the deformation and fracture behavior of a ceramic fiber sample under the coupled action of high temperature and stress. Background technique [0002] Ceramic fiber is a reinforcement of ceramic matrix composites. Fibrous materials made of natural or artificial inorganic substances by different processes can also be converted from organic fibers through high-temperature heat treatment. In addition to excellent mechanical properties, ceramic fibers also have the advantages of anti-oxidation and high temperature stability. The stress-strain relationship and mechanical properties of ceramic fiber samples at high temperatures are important performance indicators for high-temperature resistant high-performance materials used in high-tech fields such as aerospace and advanced weaponry. Studies have shown that as the service temperature increases, the elast...

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Application Information

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IPC IPC(8): G01N3/18G01B11/16
Inventor 冯祖德姚荣迁陈立富
Owner XIAMEN UNIV
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