摘要:
A method of fabricating a ceramic component includes processing a hybrid matrix blend formed of a ceramic precursor and a glass powder to form a hybrid matrix composite component. A polymer-derived ceramic component including a hybrid matrix composite formed of a hybrid matrix blend including at least one of a ceramic precursor and a conversion char, and a glass powder.
摘要:
The invention relates to an unshaped product comprising, in weight percentages and for a total of 100%, A) particles (a) of at least one refractory material other than a glass, the main component(s) of which is/are alumina (Al 2 O 3 ) and/or zirconium oxide (ZrO 2 ) and/or silica (SiO 2 ) and/or chromium oxide (Cr 2 O 3 ), the particles (a) forming the remainder up to 100%, B) from 2% to 15% of particles (b) of a hot binder, selected from glass-ceramic particles, particles of a glass, in particular of a glass-ceramic precursor glass, and the mixtures of these particles, the amount by weight of glass-ceramic particles and/or of glass-ceramic precursor glass particles in all the particles (b) as a whole being greater than 10%, based on the weight of all the particles (b), the hot binder not being solid at 1500°C, C) less than 2% of particles (c) of hydraulic cement, D) less than 7% of other components, all of said particles (a) and (b) as a whole, preferably the fraction of all the particles of the unshaped product that are of a size less than 40 μm, being distributed, in weight percentages in relation to the weight of the unshaped product, in the following manner - fraction
摘要:
The present invention relates to a silicate glass, a method for preparing a silicate glass-ceramics by using the silicate glass, and a method for preparing a lithium disilicate glass-ceramics by using the silicate glass, and more particularly, to a method for preparing a glass-ceramics that has a nanosize of 0.2 to 0.5 µm and contains lithium disilicate and silicate crystalline phases. A nano lithium disilicate glass-ceramics containing a SiO 2 crystalline phase includes: a glass composition including 70 to 85 wt% SiO 2 , 10 to 13 wt% Li 2 O, 3 to 7 wt% P 2 O 5 working as a nuclei formation agent, 0 to 5 wt% Al 2 O 3 for increasing a glass transition temperature and a softening point and enhancing chemical durability of glass, 0 to 2 wt% ZrO 2 , 0.5 to 3 wt% CaO for increasing a thermal expansion coefficient of the glass, 0.5 to 3 wt% Na 2 O, 0.5 to 3 wt% K 2 O, and 1 to 2 wt% colorants, and 0 to 2.0 wt% mixture of MgO, ZnO, F, and La 2 O 3 .
摘要翻译:本发明涉及一种硅酸盐玻璃,一种使用该硅酸盐玻璃制备硅酸盐玻璃陶瓷的方法以及一种使用该硅酸盐玻璃制备二硅酸锂玻璃陶瓷的方法,更具体地涉及一种制备硅酸盐玻璃的方法, 具有0.2至0.5μm的纳米尺寸并包含二硅酸锂和硅酸盐结晶相的玻璃陶瓷。 包含SiO2结晶相的纳米二硅酸锂玻璃陶瓷包括:包含70至85重量%的SiO2,10至13重量%的Li2O,3至7重量%的用作成核剂的P2O5的玻璃组合物,0至5重量% 用于提高玻璃化转变温度和软化点并提高玻璃的化学耐久性的Al2O3,用于提高玻璃的热膨胀系数的0.5-2重量%的ZrO2,0.5-3重量%的CaO,0.5-3重量%的Na2O, 3重量%的K 2 O和1至2重量%的着色剂,以及0至2.0重量%的MgO,ZnO,F和La 2 O 3的混合物。