公开(公告)号：WO2018009769A1

公开(公告)日：2018-01-11

申请号：PCT/US2017/041057

申请日：2017-07-07

Applicant: ALCOA USA CORP. ,  SHANTA, Charles, Robert III.

Inventor： SHANTA, Charles, Robert III. ,  MCMILLEN, James, C. ,  SWORTS, Lance, M. ,  MOSSER, Benjamin, D.

IPC: B01J4/00 ,  B01J6/00 ,  B01J8/00 ,  C22C29/00 ,  C22C29/02 ,  C22C29/14

Abstract: Systems and methods for making ceramic powders configured with consistent, tailored characteristics and/or properties are provided herein. In some embodiments a system for making ceramic powders, includes: a reactor body having a reaction chamber and configured with a heat source to provide a hot zone along the reaction chamber; a sweep gas inlet configured to direct a sweep gas into the reaction chamber and a sweep gas outlet configured to direct an exhaust gas from the reaction chamber, a plurality of containers, within the reactor body, configured to retain at least one preform, wherein each container is configured to permit the sweep gas to flow therethrough, wherein the preform is configured to permit the sweep gas to flow there through, such that the precursor mixture is reacted in the hot zone to form a ceramic powder product having uniform properties.

Abstract translation: 本文提供了用于制备具有一致的，定制的特征和/或性质的陶瓷粉末的系统和方法。 在一些实施方式中，一种用于制造陶瓷粉末的系统包括：反应器主体，其具有反应室并配置有热源以沿着反应室提供热区; 被配置为将吹扫气体引导到所述反应室中的吹扫气体入口和被配置成引导来自所述反应室的排气的吹扫气体出口;在所述反应器主体内的多个容器，其被构造成保持至少一个预成形件，其中每个 容器构造成允许吹扫气体从中流过，其中预成形件构造成允许吹扫气体从那里流过，使得前体混合物在加热区中反应以形成具有均匀特性的陶瓷粉末产品。 p>

公开(公告)号：WO2018009687A1

公开(公告)日：2018-01-11

申请号：PCT/US2017/040931

申请日：2017-07-06

Applicant: ALCOA USA CORP.

Inventor： MOSSER, Benjamin, D. ,  MCMILLEN, James, C. ,  WOLF, William ,  SWORTS, Lance, M. ,  STEERE, Artemas

IPC: F41H5/04 ,  C04B35/58 ,  F41H5/00 ,  F41H5/007 ,  F41H5/02

CPC classification number: C04B35/58071 ,  C04B35/6261 ,  C04B35/6262 ,  C04B35/62655 ,  C04B35/6303 ,  C04B35/64 ,  C04B35/6455 ,  C04B2235/3813 ,  C04B2235/40 ,  C04B2235/404 ,  C04B2235/405 ,  C04B2235/408 ,  C04B2235/604 ,  C04B2235/6567 ,  C04B2235/77 ,  C04B2235/96

Abstract: In some embodiments, a ceramic armor product includes: a ceramic powder; an at least one metal-based additive; and a density of 4.3-4.7 g/cc, wherein the ceramic armor product is substantially lacking grain orientation. In some embodiments, a ceramic armor product, includes: a ceramic powder, wherein the ceramic powder is titanium diboride (TiB2); an at least one metal-based additive, wherein the at least one metal based additive comprises elements ranging from atomic numbers 21 through 30, 39 through 51, and 57 through 77; and a density of 4.3-4.7 g/cc, wherein the ceramic armor product is substantially lacking grain orientation.

Abstract translation: 在一些实施例中，陶瓷装甲产品包括：陶瓷粉末; 至少一种金属基添加剂; 密度为4.3-4.7克/立方厘米，其中陶瓷装甲产品基本上没有晶粒取向。 在一些实施例中，陶瓷装甲产品包括：陶瓷粉末，其中陶瓷粉末是二硼化钛（TiB 2）; 至少一种金属基添加剂，其中所述至少一种金属基添加剂包含原子序数21至30,39至51和57至77范围内的元素; 密度为4.3-4.7克/立方厘米，其中陶瓷装甲产品基本上没有晶粒取向。

公开(公告)号：WO2017223481A1

公开(公告)日：2017-12-28

申请号：PCT/US2017/039048

申请日：2017-06-23

Applicant: ALCOA USA CORP.

Inventor： MCMILLEN, James, C. ,  SWORTS, Lance, M. ,  MOSSER, Benjamin, D.

IPC: C04B35/58 ,  C04B35/52 ,  C04B35/83 ,  C04B35/634

Abstract: Systems and methods for making ceramic powders are provided. In some embodiments, a method for forming a ceramic powder includes: adding a sufficient amount of additives to a plurality of reagents to form a precursor mixture so that when the precursor mixture is carbothermically reacted the precursor mixture forms a ceramic powder, wherein the additive includes at least one of: an oxide, a salt, a pure metal or an alloy of elements ranging from atomic numbers 21 through 30, 39 through 51, and 57 through 77 and combinations thereof; and carbothermically reacting the precursor mixture to form a ceramic powder, wherein the ceramic powder comprises: a) a morphology selected from the group consisting of irregular, equiaxed, plate-like, and combinations thereof, and b) a particle size distribution selected from the group consisting of fine, intermediate, coarse, and combinations thereof.

Abstract translation: 提供了制造陶瓷粉末的系统和方法。 在一些实施方案中，用于形成陶瓷粉末的方法包括：向多种试剂中加入足够量的添加剂以形成前体混合物，使得当前体混合物进行碳热反应时，前体混合物形成陶瓷粉末，其中添加剂包括 以下中的至少一种：氧化物，盐，纯金属或原子序数为21至30,39至51和57至77及其组合的元素的合金; 并且使所述前体混合物进行碳热反应以形成陶瓷粉末，其中所述陶瓷粉末包含：a）选自由不规则，等轴，板状及其组合组成的组的形态，和b）选自 由精细，中等，粗糙及其组合构成的组。