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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: 2010-09-01
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: Preparation of anhydrous toluene

[0058] Toluene C 6 h 6 and sodium Na are loaded into the first reaction vessel through the opening of A, refluxed at a temperature of 110°C (measured by a thermometer in real time) to remove trace water in the toluene, and then distilled at 112°C (measured by a thermometer in real time). Obtain anhydrous toluene; Add 5g of sodium in the toluene of 100ml;

[0059] Step 2: Prepare PCS-toluene solution

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

[0064] Mix the PCS-toluene solution prepared in step 2 and the PBS-toluene sol...

Embodiment 2

[0074] Step 1: Preparation of anhydrous toluene

[0075] Toluene C 6 h 6 and sodium Na are loaded into the first reaction vessel through the A opening, refluxed at a temperature of 108°C (measured by a thermometer in real time) to remove trace water in toluene, and then distilled at 112°C (measured by a thermometer in real time). Obtain anhydrous toluene; Add 3g of sodium in the toluene of 100ml;

[0076] Step 2: Prepare 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 0.5ml polyborosilazane (PBS) to 1ml of anhydrous toluene;

[0080] Step 4: Precursor polymer alloy preparation

[0081] Mix the PCS-toluene solution prepared in step 2 and the PBS-toluene solution ...

Embodiment 3

[0089] Step 1: Preparation of anhydrous toluene

[0090] Toluene C 6 h 6 and sodium Na are loaded into the first reaction vessel through the opening of A, and reflux is carried out at a temperature of 105° C. (measured by a thermometer in real time) to remove trace water in toluene, and then distilled at 110° C. (measured by a thermometer in real time). Obtain anhydrous toluene; Add 1g of sodium in 100ml of toluene;

[0091] Step 2: Prepare 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 0.1ml polyborosilazane (PBS) to 1ml of anhydrous toluene;

[0095] Step 4: Precursor polymer alloy preparation

[0096]Mix the PCS-toluene solution prepared in step 2 and the PB...

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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 method for manufacturing glass-ceramics, in particular to a method for manufacturing SiC-SiBCN glass-ceramics prepared by using a high-temperature pyrolysis ceramic precursor polymer alloy. Background technique [0002] The glass-ceramic material is a multi-phase material in which the microcrystals formed by the precipitation of crystals in a single uniform glass phase are dispersed in a continuous and dense glass phase. Since the glass-ceramic is composed of crystals and amorphous or amorphous bodies , and has a special multi-dimensional composite structure with uniformly dispersed crystals, so this material has many excellent characteristics different from polycrystalline ceramics and glass, and has become a unique new type of material. Due to its excellent performance and strong designability, glass-ceramic has been widely used in daily life, architectural decoration, optics, electronic devices, biomaterials, military defe...

Claims

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Application Information

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IPC IPC(8): C03C10/02
Inventor 张跃李松李亚静于涛
Owner BEIHANG UNIV
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