公开(公告)号：US06630427B2

公开(公告)日：2003-10-07

申请号：US10160805

申请日：2002-05-31

Applicant: David C. Dunand

Inventor： David C. Dunand

IPC: C04B3558

CPC classification number: H01L39/2487 ,  H01L39/125

Abstract: Superconducting phases comprising magnesium diboride related composites and methods of preparation.

Abstract translation: 包含二硼化硼相关复合材料的超导相及其制备方法。

公开(公告)号：US6132676A

公开(公告)日：2000-10-17

申请号：US885230

申请日：1997-06-30

Applicant: Hermann Holzer ,  David C. Dunand

Inventor： Hermann Holzer ,  David C. Dunand

IPC: B22F1/02 ,  H01L23/15 ,  H01L23/373

CPC classification number: B22F1/025 ,  H01L23/15 ,  H01L23/3733 ,  B22F2998/00 ,  H01L2924/0002 ,  H01L2924/09701

Abstract: The invention provides techniques for forming composites including XW.sub.2 O.sub.8, where X=Zr, Hf, or a combination, dispersed within a continuous, metal matrix. A low to zero coefficient of thermal expansion material, with high thermal and electrical conductivity, results. One method for forming the composite involves coating particles of XW.sub.2 O.sub.8 with a layer of metal, then isostatically pressing the particles under conditions amenable to formation of a composite. The technique of coating, with a more malleable phase, a phase that undergoes a disadvantageous phase transformation of decomposition upon exposure to a threshold pressure at a set temperature can be applied to a variety of materials.

Abstract translation: 本发明提供了用于形成复合材料的技术，包括分散在连续的金属基体内的XW2O8，其中X = Zr，Hf或组合。 一种低至零的热膨胀系数材料，具有较高的导热和导热性能。 形成复合材料的一种方法包括用一层金属涂覆XW2O8的颗粒，然后在适于形成复合材料的条件下等压挤压颗粒。 具有更可延展相的涂覆技术可以应用于各种材料，该相在暴露于设定温度的阈值压力时经历不利的分解相转变。

公开(公告)号：US5413649A

公开(公告)日：1995-05-09

申请号：US99824

申请日：1993-07-29

Applicant: David C. Dunand ,  Cynthia M. Bedell

Inventor： David C. Dunand ,  Cynthia M. Bedell

IPC: C21D8/00 ,  C22C1/10 ,  H01F1/03

CPC classification number: C22C1/1094 ,  C21D8/00 ,  H01F1/03 ,  C21D2201/02 ,  C21D2251/00 ,  Y10S420/902 ,  Y10S72/709

Abstract: A method for inducing superplasticity in a composite including a non-transforming phase and a transforming phase by cycling the composite material through a phase transformation of the transforming phase while applying an external stress to the composite material is provided as is a method for inducing superplasticity in a titanium/titanium carbide composite. Also provided is a method for forming a part from a composite material including a transforming phase and a non-transforming phase by cycling the composite through a phase transformation of the transforming phase and shaping the composite material by applying an external stress to the composite material while the transforming phase is undergoing a phase transformation to form a finished article.

Abstract translation: 提供了通过在复合材料施加外部应力的同时使复合材料通过相变而使复合材料包含非变形相和转变相的诱导超塑性的方法，该方法是引入超塑性的方法 钛/碳化钛复合材料。 还提供了一种通过使复合材料通过转化相的相变循环使复合材料通过向复合材料施加外部应力而使复合材料成形而从包含转化相和非转变相的复合材料形成部件的方法，同时 转化阶段正在进行相变以形成成品。

公开(公告)号：US5366686A

公开(公告)日：1994-11-22

申请号：US34731

申请日：1993-03-19

Applicant: Andreas Mortensen ,  David C. Dunand

Inventor： Andreas Mortensen ,  David C. Dunand

IPC: B22D19/14 ,  B22F3/26 ,  C04B35/573 ,  C04B35/65 ,  C22C1/10 ,  B22F7/08 ,  B22D19/00 ,  C04B35/02

CPC classification number: B22F3/26 ,  B22D19/14 ,  C04B35/573 ,  C04B35/652 ,  C22C1/1036 ,  C22C2001/1057 ,  Y10S264/30

Abstract: A method for producing an article including a refractory compound by infiltrating a preform with a liquid infiltrant and initiating a reaction between the preform and the liquid infiltrant to establish a reaction front which propagates in a direction opposite to the direction of flow of the liquid infiltrant is provided, as are articles prepared according to this method.

Abstract translation: 通过用液体浸渗剂渗透预成型体并引发预成型体和液体渗透剂之间的反应以建立沿与液体浸渗剂的流动方向相反的方向传播的反应前沿来生产包含耐火化合物的制品的方法， 提供，根据这种方法准备的文章。