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A detection method and silicate technology, applied in the field of analysis and detection, can solve problems such as large error in results, and achieve the effect of ensuring accuracy and accurate measurement
Pending Publication Date: 2022-02-15
INST OF RESOURCES UTILIZATION & RARE EARTH DEV GUANGDONG ACAD OF SCI
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Abstract
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Problems solved by technology
The sintering temperature of silicate ceramic samples is relatively high, which usually exceeds the scanning temperature of DSC. At the same time, DSC uses an estimation method, and the error of the result is large.
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Embodiment 1
[0022] In this embodiment, a daily-use silicate ceramic sample is detected, and the specific detection process is as follows:
[0023] Step 1: Cut the ceramic sample to a block size below 10mm, dry it and embedding it with epoxy resin for cold mounting to make an epoxy resin light sheet.
[0024] Step 2: Polish the cured epoxy resin light sheet, spray carbon, and then perform MLA system (model: MLA650) measurement. Set the SEM acceleration voltage to 20KV, the beam spot to 7.0nm, and select epoxy resin and metal copper as gray scale standard samples respectively in BSE mode to adjust the contrast and brightness of SEM, so that the gray value of epoxy resin is adjusted to 10, and the gray value of metal copper is adjusted to 10. Adjust the gray value to 255. Select a representative rectangular area, the number of measurement frames is 25, the grid measurement mode is adopted, the image resolution is 500*500, the X-ray acquisition resolution is 2*2, the dwell time of the energy...
Embodiment 2
[0037] In this embodiment, a silicate ceramic sample is detected, and the specific detection process is as follows:
[0038] Step 1: Cut the ceramic sample to a block size below 10mm, dry it and embedding it with epoxy resin for cold mounting to make an epoxy resin light sheet.
[0039] Step 2: Polish and carbon-spray the cured epoxy resin light sheet, and then measure it with the MLA system (model: MLA650). Set the SEM acceleration voltage to 20KV, the beam spot to 7.0nm, and select epoxy resin and metal copper as gray scale standard samples respectively in BSE mode to adjust the contrast and brightness of SEM, so that the gray value of epoxy resin is adjusted to 10, and the gray value of metal copper is adjusted to 10. Adjust the gray value to 255. Select a representative rectangular area, the number of measurement frames is 25, the grid measurement mode is adopted, the image resolution is 500*500, the X-ray acquisition resolution is 2*2, the dwell time of the energy spectr...
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Abstract
The invention belongs to the technical field of analysis and detection, and particularly discloses a silicate ceramic composition detection method. The method comprises the following steps: firstly, cutting a silicate ceramic sample into blocks, then carrying out epoxy resin embedding treatment on the block-shaped sample, and curing to obtain an epoxy resin polished section; carrying out polishing and carbon spraying on the epoxy resin polished section, and then carrying out measurement by adopting an MLA system to obtain a newly built X-ray energy spectrum list; and arranging and naming a newly-built X-ray energy spectrum list, then carrying out phase classification on measurement data, and then calculating to obtain the mass percent contents of crystalline phase minerals, amorphous phases and pores in the silicate ceramic sample. According to the method disclosed by the invention, the performance of the silicate ceramic can be evaluated by measuring the composition of the silicate ceramic, and a theoretical basis and support are provided for optimizing a ceramic processing technology.
Description
technical field [0001] The invention relates to the technical field of analysis and detection, in particular to a composition detection method of silicate ceramics. Background technique [0002] Silicate ceramics are a class of widely used inorganic non-metallic materials, and their phase structure is mainly composed of crystal phase, amorphous phase and pores. Crystal phase and amorphous phase are the main constituent phases of silicate ceramics, and their content and structure determine the main properties and uses of silicate ceramics. Determination of the phase composition of silicate ceramics, such as the determination of the mass content and structural characteristics of crystalline and amorphous phases in silicate ceramics, is of great significance for evaluating the performance of silicate ceramics and optimizing ceramic processing technology. . [0003] At present, the conventional methods for determining the content of crystalline phase and amorphous phase in sil...
Claims
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Patent Type & Authority Applications(China)
IPC IPC(8): G01Q30/20G01Q30/02G01N23/2202
CPCG01Q30/20G01Q30/02G01N23/2202
Inventor 李波张莉莉蒋英洪秋阳李美荣梁冬云
Owner INST OF RESOURCES UTILIZATION & RARE EARTH DEV GUANGDONG ACAD OF SCI
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