公开(公告)号：US5013523A

公开(公告)日：1991-05-07

申请号：US510445

申请日：1990-04-18

申请人： Hajime Hata ,  Takao Kitamura ,  Kohji Sakane ,  Hideo Wada ,  Seiji Sogabe

发明人： Hajime Hata ,  Takao Kitamura ,  Kohji Sakane ,  Hideo Wada ,  Seiji Sogabe

IPC分类号： C22C49/06 ,  C22C49/14

CPC分类号： C22C49/06 ,  C22C49/14 ,  B22F2998/00 ,  Y10T428/12486

摘要： Disclosed is a metal-based composite material comprising aluminum or an aluminum alloy combined with a whisker of aluminum borate represented by the chemical formula of 9Al.sub.2 O.sub.3.2B.sub.2 O.sub.3 or 2Al.sub.2 O.sub.3.B.sub.2 O.sub.3. This composite material has excellent mechanical properties such as high tensile strength and high hardness.

公开(公告)号：US4925641A

公开(公告)日：1990-05-15

申请号：US207538

申请日：1988-06-16

申请人： Takao Kitamura ,  Kohji Sakane ,  Hideo Wada ,  Hajime Hata ,  Hajime Kanbara

发明人： Takao Kitamura ,  Kohji Sakane ,  Hideo Wada ,  Hajime Hata ,  Hajime Kanbara

IPC分类号： C30B9/00

CPC分类号： C30B29/22 ,  C30B29/62 ,  C30B9/00

摘要： An aluminum borate whisker having a composition of 9Al.sub.2 O.sub.3 .multidot.2B.sub.2 O.sub.3 or 2Al.sub.2 O.sub.3 .multidot.B.sub.2 O.sub.3 is formed by reacting under heating at least one aluminum-supplying component selected from the group consisting of hydroxides and inorganic salts of aluminum and at least one boric acid-supplying component selected from the group consisting of oxides, oxyacids and their alkali metal salts of boron in the presence of at least one flux selected from the group consisting of alkali metal chlorides, alkali metal sulfates and alkali carbonates.