Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Production method of high-density ceramic for BNCT
The invention discloses a production method of high-density ceramic for BNCT. According to the technical scheme, the method comprises the following steps of (1) cold pressing, wherein high-purity dry powder formed by combining one or more of magnesium fluoride, calcium fluoride, aluminum fluoride, lithium fluoride and aluminum powder is subjected to cold pressing forming in a steel mold; (2) hot pressing: compactly bonding together under a high-pressure condition to form high-compactness columnar ceramic; 3) hot isostatic pressing: the sintering temperature in a hot isostatic pressing furnace is 10-100 DEG C lower than the melting point of the powder, the pressure is 60-200 MPa, heat preservation is performed for a period of time, and the high-density ceramic is taken out after cooling; (4) machining: grinding off an outer metal protective shell through a grinding machine to obtain the BSA ceramic during high-density ceramic processing, and (5) splicing: splicing a plurality of ceramic blocks, and wrapping the spliced ceramic blocks with an aluminum alloy sleeve to form the large-size BSA ceramic. The preparation method provided by the invention is scientific and high in yield, and the prepared BSA ceramic material is excellent in performance.
本发明公开了一种用于BNCT的高密度陶瓷生产方法。本发明的技术方案是：包括以下步骤：1）、冷压：将氟化镁、氟化钙、氟化铝、氟化锂、铝粉中的一种或者几种的组合的高纯干粉在钢模中冷压成型；2）、热压：在高压条件下致密粘接在一起，形成高致密的柱状陶瓷；3）、热等静压：热等静压炉中烧结温度比粉体熔点低10~100℃，压力60~200MPa，保温一段时间，降温后取出高致密陶瓷；4）、机加工：高致密陶瓷加工先通过磨床，把外侧金属保护壳磨掉，得到BSA陶瓷；5）、拼接：多块陶瓷拼接起来，拼接后外面使用铝合金套筒来包裹形成大尺寸BSA陶瓷。本发明提供的方案制备方法科学，良品率高，制得的BSA陶瓷材料性能优异。
Production method of high-density ceramic for BNCT
The invention discloses a production method of high-density ceramic for BNCT. According to the technical scheme, the method comprises the following steps of (1) cold pressing, wherein high-purity dry powder formed by combining one or more of magnesium fluoride, calcium fluoride, aluminum fluoride, lithium fluoride and aluminum powder is subjected to cold pressing forming in a steel mold; (2) hot pressing: compactly bonding together under a high-pressure condition to form high-compactness columnar ceramic; 3) hot isostatic pressing: the sintering temperature in a hot isostatic pressing furnace is 10-100 DEG C lower than the melting point of the powder, the pressure is 60-200 MPa, heat preservation is performed for a period of time, and the high-density ceramic is taken out after cooling; (4) machining: grinding off an outer metal protective shell through a grinding machine to obtain the BSA ceramic during high-density ceramic processing, and (5) splicing: splicing a plurality of ceramic blocks, and wrapping the spliced ceramic blocks with an aluminum alloy sleeve to form the large-size BSA ceramic. The preparation method provided by the invention is scientific and high in yield, and the prepared BSA ceramic material is excellent in performance.
本发明公开了一种用于BNCT的高密度陶瓷生产方法。本发明的技术方案是：包括以下步骤：1）、冷压：将氟化镁、氟化钙、氟化铝、氟化锂、铝粉中的一种或者几种的组合的高纯干粉在钢模中冷压成型；2）、热压：在高压条件下致密粘接在一起，形成高致密的柱状陶瓷；3）、热等静压：热等静压炉中烧结温度比粉体熔点低10~100℃，压力60~200MPa，保温一段时间，降温后取出高致密陶瓷；4）、机加工：高致密陶瓷加工先通过磨床，把外侧金属保护壳磨掉，得到BSA陶瓷；5）、拼接：多块陶瓷拼接起来，拼接后外面使用铝合金套筒来包裹形成大尺寸BSA陶瓷。本发明提供的方案制备方法科学，良品率高，制得的BSA陶瓷材料性能优异。
Production method of high-density ceramic for BNCT
一种用于BNCT的高密度陶瓷生产方法
MEI LONGWEI (Autor:in)
07.03.2023
Patent
Elektronische Ressource
Chinesisch
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