公开(公告)号：US4983339A

公开(公告)日：1991-01-08

申请号：US229226

申请日：1988-08-05

申请人： Marcel Boncoeur ,  Thierry Lieven ,  Marc Palacio

发明人： Marcel Boncoeur ,  Thierry Lieven ,  Marc Palacio

IPC分类号： B22F3/12 ,  B22F3/14 ,  B22F3/15 ,  C04B35/645

CPC分类号： C04B35/6455 ,  B22F3/1241

摘要： The invention relates to a process for shaping a material by isostatic compression at a temperature of at least 1300.degree. C. of a powder of said material in a tight sheath.The sheath is made from titanium or a titanium alloy and is internally coated with tantalum in such a way that the sheath can be embrittled during hot isostatic compression, by the diffusion of tantalum into the titanium or titanium alloy, in the presence of oxygen. In general, the titanium sheath is coated with tantalum by spraying in the presence of oxygen.The use of such a sheath makes it possible to avoid the operation of eliminating the sheath chemically or mechanically conventionally necessary in such processes.

摘要翻译： 本发明涉及通过在紧密护套中的所述材料的粉末在至少1300℃的温度下通过等静压来成形材料的方法。 护套由钛或钛合金制成并且在内部涂覆有钽，使得在氧气等离子体压缩过程中，通过在氧气存在下将钽扩散到钛或钛合金中，护套可以被脆化。 通常，在钛的存在下通过喷涂钛包覆钽。 使用这样的护套使得可以避免在这些工艺中化学或机械地传统需要消除鞘的操作。

公开(公告)号：US4614637A

公开(公告)日：1986-09-30

申请号：US726728

申请日：1985-04-24

申请人： Marcel Boncoeur ,  Bernard Hansz ,  Thierry Lieven

发明人： Marcel Boncoeur ,  Bernard Hansz ,  Thierry Lieven

IPC分类号： C01B35/02 ,  C01B35/04 ,  G21C3/62 ,  B22F3/10

CPC分类号： C01B35/023 ,  C01B35/02 ,  C01B35/04

摘要： The invention relates to a process for the production of porous products of boron or boron compounds.This process comprises the following stages:(1) suspending the boron powder in a solution of an alkali metal salt, hydroxide and/or oxide,(2) then separating the powder from the suspension liquid by settling,(3) drying the thus separated powder to obtain an agglomerated powder, and(4) subjecting the thus obtained agglomerated powder to at least two heat treatments performed at different temperatures, the final stage of the heat treatment being performed at a temperature of 1500.degree. to 2200.degree. C. and the first stage being performed at a temperature below that of the final stage.The heat treatment can be performed in three stages, as shown in the attached graph.

摘要翻译： 本发明涉及生产硼或硼化合物的多孔产品的方法。 该方法包括以下步骤：（1）将硼粉末悬浮在碱金属盐，氢氧化物和/或氧化物的溶液中，（2）然后通过沉降将粉末与悬浮液分离，（3）干燥所分离的 粉末以获得凝聚粉末，和（4）将如此获得的附聚粉末在不同温度下进行至少两次热处理，热处理的最后阶段在1500℃至2200℃的温度下进行，并且 第一阶段在低于最后阶段的温度下进行。 热处理可以分三个阶段进行，如附图所示。