Preparation method of zirconium diboride (ZrB2) ceramic precursor
A ceramic precursor, zirconium diboride technology, applied in the field of material chemistry, can solve the problems that cannot meet the requirements of C/C composite materials, cannot form a homogeneous impregnation solution, etc., achieve high ceramic conversion rate and broad application prospects Effect
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[0020] A kind of preparation method of zirconium diboride ceramic precursor, adopts following steps:
[0021] Step 1: Ingredients:
[0022] Zirconium oxychloride octahydrate, o-hydroxybenzyl alcohol, acetylacetone and boric acid;
[0023] Step 2: Synthesis of zirconium-containing polymer PZS:
[0024] Acetylacetone (2g, 0.02mol), o-hydroxybenzyl alcohol, triethylamine (2.02g, 0.02mol) and methanol (25mL) were mixed evenly, and then added dropwise to a solution containing zirconium oxychloride (3.22 g , 0.01mol) methanol solution (50mL) in a three-necked flask;
[0025] After the dropwise addition, the reaction was stirred and reacted at room temperature for 6 hours; the reaction solution was sequentially subjected to steps such as rotary evaporation, THF dissolution, filtration, filtrate concentration, n-hexane precipitation, and vacuum drying at room temperature to obtain a light yellow zirconium-containing polymer powder;
[0026] Step 3: ZrB 2 Preparation of ceramic pre...
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