Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Novel thermal insulation ceramic material and preparation method thereof
The invention discloses a novel thermal insulation ceramic material and a preparation method thereof. During hot pressed sintering, temperature and pressure are changed twice, when the temperature and pressure are reduced for the first time, alumina particles are added, alumina and the particles in the ceramic material form fine cavities, when the temperature and pressure are changed for the second time, the alumina is molten, and a compact cavity layer is formed on the surface layer of the ceramic material with the particles so that the ceramic material has heat preservation and heat insulation effects, and the heat conductivity of the ceramic material is also reduced; the self-made nano ceramic binding agent can improve the strength of the ceramic material and improve the heat preservation and insulation performance at the same time; during sintering, a protein-coated MgO-Lu2O3-Re2O3 ternary sintering aid is added so that cavities formed by particles are ordered and compact, and the thermal insulation property of the ceramic material is improved; and the released ternary sintering aid does not need to be subjected to subsequent treatment so that the technological process is simplified.
本发明公开了一种保温隔热新型陶瓷材料及其制备方法，在进行热压烧结时，进行两次温度、压力的变化，第一次温度、压力降低时加入氧化铝颗粒，氧化铝与陶瓷材料中的颗粒形成细小的空腔，第二次温度、压力的变化时氧化铝熔融，在陶瓷材料中与颗粒在表层形成致密的空腔层，使陶瓷材料具有保温隔热的效果，也降低陶瓷材料的热导率；自制的纳米陶瓷结合剂可以提高陶瓷材料强度的同时提高保温隔热性能；烧结时加入蛋白质包裹的MgO‑Lu2O3‑Re2O3三元烧结助剂，使颗粒形成的空腔有序且致密，提高陶瓷材料的保温性能；释放的三元烧结助剂不用再进行后续处理，简化工艺流程。
Novel thermal insulation ceramic material and preparation method thereof
The invention discloses a novel thermal insulation ceramic material and a preparation method thereof. During hot pressed sintering, temperature and pressure are changed twice, when the temperature and pressure are reduced for the first time, alumina particles are added, alumina and the particles in the ceramic material form fine cavities, when the temperature and pressure are changed for the second time, the alumina is molten, and a compact cavity layer is formed on the surface layer of the ceramic material with the particles so that the ceramic material has heat preservation and heat insulation effects, and the heat conductivity of the ceramic material is also reduced; the self-made nano ceramic binding agent can improve the strength of the ceramic material and improve the heat preservation and insulation performance at the same time; during sintering, a protein-coated MgO-Lu2O3-Re2O3 ternary sintering aid is added so that cavities formed by particles are ordered and compact, and the thermal insulation property of the ceramic material is improved; and the released ternary sintering aid does not need to be subjected to subsequent treatment so that the technological process is simplified.
本发明公开了一种保温隔热新型陶瓷材料及其制备方法，在进行热压烧结时，进行两次温度、压力的变化，第一次温度、压力降低时加入氧化铝颗粒，氧化铝与陶瓷材料中的颗粒形成细小的空腔，第二次温度、压力的变化时氧化铝熔融，在陶瓷材料中与颗粒在表层形成致密的空腔层，使陶瓷材料具有保温隔热的效果，也降低陶瓷材料的热导率；自制的纳米陶瓷结合剂可以提高陶瓷材料强度的同时提高保温隔热性能；烧结时加入蛋白质包裹的MgO‑Lu2O3‑Re2O3三元烧结助剂，使颗粒形成的空腔有序且致密，提高陶瓷材料的保温性能；释放的三元烧结助剂不用再进行后续处理，简化工艺流程。
Novel thermal insulation ceramic material and preparation method thereof
一种保温隔热新型陶瓷材料及其制备方法
TANG MINGMING (Autor:in)
04.06.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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