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Manufacturing method of SiC-SiBCN nucleated glass

A kind of glass-ceramic and a technology of manufacturing method, which are applied in the field of manufacturing SiC-SiBCN glass-ceramic

Inactive Publication Date: 2011-12-21
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to make the glass-ceramic can be used stably at 1400°C-1600°C, and also to improve the existing glass-ceramic preparation method and the problems caused by changing the oxide composition of the existing glass-ceramic

Method used

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  • Manufacturing method of SiC-SiBCN nucleated glass
  • Manufacturing method of SiC-SiBCN nucleated glass
  • Manufacturing method of SiC-SiBCN nucleated glass

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Step 1: Prepare anhydrous toluene

[0058] Toluene C 6 H 6 The sodium and Na are put into the first reaction vessel through the opening A, reflux at 110℃ (measured by the thermometer in real time) to remove trace water in toluene, and then distilled at 112℃ (measured by the thermometer in real time) Obtain anhydrous toluene; add 5g of sodium to 100ml of toluene;

[0059] Step 2: Preparation of PCS-toluene solution

[0060] Dissolve polycarbosilane (PCS) in the anhydrous toluene prepared in step 1 to form a PCS-toluene solution; add 1g of polycarbosilane to 1ml of anhydrous toluene;

[0061] Step 3: Prepare PBS-toluene solution

[0062] Dissolve polyborosilazane (PBS) in the anhydrous toluene prepared in step 1 to form a PBS-toluene solution; add 1ml of polyborosilazane (PBS) to 1ml of anhydrous toluene;

[0063] Step 4: Precursor polymer alloy

[0064] The PCS-toluene solution prepared in step 2 and the PBS-toluene solution prepared in step 3 were mixed at a magnetic stirring spee...

Embodiment 2

[0074] Step 1: Prepare anhydrous toluene

[0075] Toluene C 6 H 6 And sodium Na is put into the first reaction vessel through opening A, refluxed at 108℃ (measured by thermometer in real time) to remove trace water in toluene, and then distilled at 112℃ (measured by thermometer in real time) Obtain anhydrous toluene; add 3g of sodium to 100ml of toluene;

[0076] Step 2: Preparation of PCS-toluene solution

[0077] Dissolve polycarbosilane (PCS) in the anhydrous toluene prepared in step 1 to form a PCS-toluene solution; add 0.5 g of polycarbosilane to 1 ml of anhydrous toluene;

[0078] Step 3: Prepare PBS-toluene solution

[0079] Dissolve polyborosilazane (PBS) in the anhydrous toluene prepared in step 1 to form a PBS-toluene solution; add 0.5 ml of polyborosilazane (PBS) to 1 ml of anhydrous toluene;

[0080] Step 4: Precursor polymer alloy

[0081] The PCS-toluene solution prepared in step 2 and the PBS-toluene solution prepared in step 3 were mixed at a magnetic stirring speed of 60...

Embodiment 3

[0089] Step 1: Prepare anhydrous toluene

[0090] Toluene C 6 H 6 And sodium Na is put into the first reaction vessel through opening A, and refluxed at 105℃ (measured by thermometer in real time) to remove trace water in toluene, and then distilled at 110℃ (measured by thermometer in real time) Obtain anhydrous toluene; add 1g of sodium to 100ml of toluene;

[0091] Step 2: Preparation of PCS-toluene solution

[0092] Dissolve polycarbosilane (PCS) in the anhydrous toluene prepared in step 1 to form a PCS-toluene solution; add 0.1 g of polycarbosilane to 1 ml of anhydrous toluene;

[0093] Step 3: Prepare PBS-toluene solution

[0094] Dissolve polyborosilazane (PBS) in the anhydrous toluene prepared in step 1 to form a PBS-toluene solution; add 0.1 ml of polyborosilazane (PBS) to 1 ml of anhydrous toluene;

[0095] Step 4: Precursor polymer alloy

[0096] The PCS-toluene solution prepared in step 2 and the PBS-toluene solution prepared in step 3 were mixed at a magnetic stirring speed o...

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Abstract

The invention discloses a manufacturing method of SiC-SiBCN nucleated glass. The manufacturing method comprises the following steps: using methyl benzene and sodium to prepare anhydrous methyl benzene, and respectively admixing PCS and PBS with the anhydrous methyl benzene to obtain a PCS methyl benzene solution and a PBS methyl benzene solution; and then adopting a process of vacuum solidification and then performing in-atmosphere pyrolysis to process a ceramic precursor polymer alloy obtained by mixing the PCS methyl benzene solution and the PBS methyl benzene solution of different proportions to obtain the SiC-SiBCN nucleated glass which can be stably used at 1400-1600 DEG C. SiC grains in the prepared SiC-SiBCN nucleated glass are dispersively distributed in the amorphous phase of SiBCN, wherein the SiC grains are obtained by the devitrification of the PCS micro zone in the condensate, and the SiBCN high-covalent bond amorphous phase is obtained after the pyrolysis of the PBS zone.

Description

Technical field [0001] The invention relates to a manufacturing method of glass-ceramics, in particular to a manufacturing method of SiC-SiBCN glass-ceramics prepared by using a high-temperature pyrolysis ceramic precursor polymer alloy. Background technique [0002] The glass-ceramic material is a composite material in which the crystals formed by the precipitation of crystals in a single uniform glass phase are dispersed in a continuous and dense glass phase. Because the glass-ceramics are composed of crystals and amorphous or amorphous bodies , And has a special multi-dimensional composite structure with uniformly dispersed crystals, so the material has many excellent characteristics not only different from polycrystalline ceramics, but also different from glass, and becomes a unique new type of material. Due to its excellent performance and characteristics of strong designability, glass-ceramics have been widely used in fields such as daily life, architectural decoration, opt...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C10/02
Inventor 张跃李松李亚静于涛
Owner BEIHANG UNIV
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