摘要:
The invention includes methods of forming an aluminum oxynitride-comprising body. For example, a mixture is formed which comprises A:B:C in a respective molar ratio in the range of 9:3.6-6.2:0.1-1.1, where “A” is Al2O3, “B” is AlN, and “C” is a total of one or more of B2O3, SiO2, Si—Al—O—N, and TiO2. The mixture is sintered at a temperature of at least 1,600° C. at a pressure of no greater than 500 psia effective to form an aluminum oxynitride-comprising body which is at least internally transparent and has at least 99% maximum theoretical density.
摘要翻译:本发明包括形成含氮氧化铝的体的方法。 例如,形成混合物,其中A:B:C的摩尔比分别为9:3.6-6.2:0.1-1.1,其中“A”为Al 2 O > 3 sub>,“B”是AlN,“C”是B 2 O 3 O 3,SiO 2, / SUB,Si-Al-ON和TiO 2。 混合物在至少1600℃的温度下在不大于500psia的压力下烧结,以形成至少内部透明并且具有至少99%最大理论密度的含氮氧化铝的主体。
摘要:
An armor structure includes first and second layers individually containing a plurality of i-beams. Individual i-beams have a pair of longitudinal flanges interconnected by a longitudinal crosspiece and defining opposing longitudinal channels between the pair of flanges. The i-beams within individual of the first and second layers run parallel. The laterally outermost faces of the flanges of adjacent i-beams face one another. One of the longitudinal channels in each of the first and second layers faces one of the longitudinal channels in the other of the first and second layers. The channels of the first layer run parallel with the channels of the second layer. The flanges of the first and second layers overlap with the crosspieces of the other of the first and second layers, and portions of said flanges are received within the facing channels of the i-beams of the other of the first and second layers.
摘要:
The invention includes methods of forming an aluminum oxynitride-comprising body. For example, a mixture is formed which comprises A:B:C in a respective molar ratio in the range of 9:3.6-6.2:0.1-1.1, where “A” is Al2O3, “B” is AlN, and “C” is a total of one or more of B2O3, SiO2, Si—Al—O—N, and TiO2. The mixture is sintered at a temperature of at least 1,600° C. at a pressure of no greater than 500 psia effective to form an aluminum oxynitride-comprising body which is at least internally transparent and has at least 99% maximum theoretical density.
摘要:
The invention includes pieces of ceramic armor, methods of joining a carbide with a metal-comprising piece, and methods of metallizing carbide-comprising surfaces. In one implementation, a method of joining a carbide with a metal-comprising piece includes providing a mixture comprising (a) and (b) over a carbide-comprising surface of a substrate, where (a) comprises at least one of niobium and titanium, and (b) comprises silicon. The mixture is heated over the carbide-comprising surface at least to the melting temperatures (a) and (b). The melted mixture is solidified into an adherent layer on the substrate. A metal-based joining material is provided over the adherent layer. Metal of a metal-comprising piece is welded to the substrate with the metal-based joining material.