公开(公告)号：US4587224A

公开(公告)日：1986-05-06

申请号：US578898

申请日：1984-02-10

申请人： Keith D. Keefer ,  Terry A. Michalske

发明人： Keith D. Keefer ,  Terry A. Michalske

IPC分类号： C03C10/00 ,  C03C10/02 ,  C03C10/04 ,  C03C10/14

CPC分类号： C03C10/0054

摘要： A phase transformation-toughened glass ceramic and a process for making it are disclosed. A mixture of particulate network-forming oxide, network-modifying oxide, and zirconium oxide is heated to yield a homogeneous melt, and this melt is then heat-treated to precipitate an appreciable quantity of tetragonal zirconia, which is retained at ambient temperature to form a phase transformation-toughened glass ceramic. Nucleating agents and stabilizing agents may be added to the mixture to facilitate processing and improve the ceramic's properties. Preferably, the mixture is first melted at a temperature from 1200.degree. to 1700.degree. C. and is then heat-treated at a temperature within the range of 800.degree. to 1200.degree. C. in order to precipitate tetragonal ZrO.sub.2.The composition, as well as the length and temperature of the heat-treatment, must be carefully controlled to prevent solution of the precipitated tetragonal zirconia and subsequent conversion to the monoclinic phase.

摘要翻译： 公开了相变钢化玻璃陶瓷及其制造方法。 将颗粒网状氧化物，网络改性氧化物和氧化锆的混合物加热以产生均匀的熔体，然后将该熔体进行热处理以沉淀可观量的四方晶氧化锆，其保留在环境温度下形成 相变钢化玻璃陶瓷。 可将成核剂和稳定剂加入到混合物中以促进加工并提高陶瓷的性能。 优选将混合物首先在1200至1700℃的温度下熔化，然后在800-1200℃的温度下进行热处理，以沉淀四方晶ZrO 2。 必须仔细控制热处理的组成以及长度和温度，以防止沉淀的四方晶氧化锆溶解，随后转化为单斜晶相。

公开(公告)号：US4652467A

公开(公告)日：1987-03-24

申请号：US704697

申请日：1985-02-25

申请人： C. Jeffrey Brinker ,  Keith D. Keefer ,  Patrick M. Lenahan

发明人： C. Jeffrey Brinker ,  Keith D. Keefer ,  Patrick M. Lenahan

IPC分类号： B05D5/12 ,  C08G79/00 ,  C09D4/00 ,  H01B3/30 ,  H01L21/312 ,  B05D5/06 ,  B05D7/24

CPC分类号： B05D5/12 ,  C08G79/00 ,  C09D4/00 ,  H01B3/30 ,  H01L21/3121

摘要： A method of coating a substrate with a thin film of a polymer of predetermined porosity comprises depositing the thin film on the substrate from a non-gelled solution comprising at least one hydrolyzable metal alkoxide of a polymeric network forming cation, water, an alcohol compatible with the hydrolysis and the polymerization of the metal alkoxide, and an acid or a base, prior to depositing the film, controlling the structure of the polymer for a given composition of the solution exclusive of the acid or base component and the water component, (a) by adjusting each of the water content, the pH, and the temperature to obtain the desired concentration of alkoxide, and then adjusting the time of standing of the solution prior to lowering the temperature of the solution, and (b) lowering the temperature of the solution after the time of standing to about 15 degrees C. or lower to trap the solution in a state in which, after the depositing step, a coating of the desired porosity will be obtained, and curing the deposited film at a temperature effective for curing whereby there is obtained a thin film of a polymer of a predetermined porosity and corresponding pore size on the substrate.

摘要翻译： 用预定孔隙率的聚合物的薄膜涂覆基材的方法包括从包含至少一种形成阳离子的聚合物网络的水解性金属醇盐的非胶凝溶液沉积薄膜，水，与 在沉积膜之前金属醇盐和酸或碱的水解和聚合控制聚合物的结构，用于给定不含酸或碱组分和水组分的溶液的组合物（a ），通过调节每个水含量，pH和温度以获得所需的醇盐浓度，然后在降低溶液温度之前调节溶液的静置时间，和（b）降低溶液的温度 该溶液在静置至约15℃或更低时将该溶液捕获到其中在沉积步骤之后，所需孔隙率的涂层将为o 获得并在有效固化的温度下固化沉积的膜，从而获得在基材上具有预定孔隙率和相应孔径的聚合物的薄膜。