摘要:
The present invention relates to an article comprising at least one of a glass or glass-ceramic comprising Al 2 O 3 and at least one of REO or Y 2 O 3 , wherein at least 60 percent by weight of the glass or glass-ceramic comprise the Al 2 O 3 and the at least one of REO or Y 2 O 3 , and wherein the glass or glass-ceramic contains not more than 40 percent by weight collectively SiO 2 , B 2 O 3 , and P 2 O 5 , based on the total weight of the glass or glass-ceramic.
摘要:
The present invention relates to an article comprising at least one of a glass or glass-ceramic comprising at least 35 percent by weight Al 2 O 3 , based on the total weight of the glass or glass-ceramic, and a first metal oxide other than Al 2 O 3 , wherein the Al 2 O 3 and the first metal oxide, and second metal oxide collectively comprise at least 70 percent by weight of the glass or glass-ceramic.
摘要:
The present invention relates to an article comprising at least one of a glass or glass-ceramic comprising at least 35 percent by weight Al 2 O 3 , based on the total weight of the glass or glass-ceramic, and a first metal oxide other than Al 2 O 3 , wherein the glass or glass-ceramic contains not more than 10 percent by weight collectively B 2 O 3 , GeO 2 , P 2 O 5 , SiO 2 , TeO 2 , and V 2 O 5 , based on the total weight of the glass or glass-ceramic.
摘要翻译:本发明涉及包含至少一种玻璃或玻璃陶瓷的制品,所述玻璃或玻璃陶瓷包含基于所述玻璃或玻璃陶瓷的总重量的至少35重量%的Al 2 O 3和除Al 2 O 3之外的第一金属氧化物,其中 基于玻璃或玻璃陶瓷的总重量,玻璃或玻璃 - 陶瓷含有总计不超过10重量%的B 2 O 3,GeO 2,P 2 O 5,SiO 2,TeO 2和V 2 O 5。
摘要:
An apparatus for the preparation of colored materials in powder form for the manufacture of ceramic tiles, which comprises a mixer constituted by an upper cover (6) connected to the supply line (3) of the base material and by a mixing chamber (5); a vibrating frame (9) located between upper cover and mixing chamber; a perforated baffle fixed to the vibrating frame, the vibrating frame is connected with seal to the mixing chamber. The apparatus is provided with a system for the generation of an operating vacuum pressure in the upper cover and an injection system of the colorant at the base of the mixing chamber. The apparatus of the present invention produces a method for the preparation of colored materials in powder form for the manufacture of ceramic tiles, wherein the atomized and/or granulated ceramic material of uniform particle size, containing or not containing coloring substances, is fed uniformly into a chamber under vacuum pressure with respect to the mixing chamber connected to said chamber through a vibrated perforated baffle; coloring particles are injected at the base of a mixing chamber; the atomized and/or granulated ceramic material falls by gravity and is sprinkled inside the mixing chamber; and mixing in gaseous phase of the atomized and/or granulated ceramic material with the rising current of coloring particles.
摘要:
A low thermal expansion ceramic which comprises at least one selected from the group consisting of cordierite, spodumene and eucryptite in an amount of 60 vol % to 99.9 vol % and at least one selected from the group consisting of carbides, nitrides and borides of 4a Group elements, 5a Group elements and 6a Group elements and boron carbide in an amount of 0.1 vol % to 40 vol %, and has a porosity of 0.5 % or less and a thermal expansion coefficient at 10 ° to 40 ° of 1.5 X 10-6/°C or less. The above ceramic has high rigidity and good resistance to abrasion together with low thermal expansion.
摘要:
Disclosed herein are compositions comprising novel calcined kaolins having a large particle size and low levels of alkali and alkali earth metal oxides. Methods of making the disclosed calcined kaolin by calcining hydrous kaolin are described. Applications using the disclosed compositions in preparing catalyst substrates, paints, coatings, sealants, cementitious products, ceramics, rubbers, polymers and other compositions are also described.
摘要:
Die vorliegende Erfindung betrifft ein Herstellungsverfahren für Geschirrkeramik, bei dem Pressrückstände rezykliert werden können. Das erfindungsgemäße Verfahren wird durch Pressmassen ermöglicht, die einen gegenüber herkömmlichen Pressmassen verringerten Gehalt an organischen Bindemitteln wie Polyvinyalkohol (PVA) haben. Das organische Bindemittel wird erfindungsgemäß teilweise oder vollständig durch Polyphosphate ersetzt.