公开(公告)号：US09330806B2

公开(公告)日：2016-05-03

申请号：US13690125

申请日：2012-11-30

Applicant: TOTO LTD.

Inventor： Shogo Shimada ,  Yasutaka Ushijima ,  Atsushi Teramoto

IPC: H01B1/02 ,  H01B1/04 ,  H01B1/08 ,  H01B1/16 ,  C04B35/117

CPC classification number: H01B1/08 ,  C04B35/117 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3232 ,  C04B2235/3234 ,  C04B2235/3267 ,  C04B2235/3272 ,  C04B2235/3418 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/5472 ,  C04B2235/77 ,  C04B2235/80 ,  C04B2235/85 ,  C04B2235/96 ,  H01B1/16

Abstract: There is provided a semiconductive ceramic sintered compact that has a conductivity high enough to attain static electricity removal and antistatic purposes and, at the same time, has excellent mechanical properties or stability over time. The semiconductive ceramic sintered compact includes at least a main phase and first and second phases contained in the main phase observed as a result of observation of any face of the sintered compact, the main phase being a ceramic sintered phase containing Al2O3 particles, the first phase being a grain boundary phase including a conductive substance-containing conductive phase and Al2O3 particles, the Al2O3 particles being present in an island-sea form in the conductive phase, the second phase being a grain boundary phase containing a conductive phase having the same composition as the conductive phase in the first phase and having a structure that electrically connects the first phases three-dimensionally to each other.

Abstract translation: 提供了一种半导体陶瓷烧结体，其具有足够高的导电性以获得静电去除和抗静电目的，并且同时具有优异的机械性能或随时间的稳定性。 半导体陶瓷烧结体至少包含主相和主相中包含的第一相和第二相，作为观察烧结体的任何表面的结果，主相是含有Al 2 O 3颗粒的陶瓷烧结相，第一相 是包含含导电物质的导电相和Al 2 O 3粒子的晶界相，所述Al 2 O 3粒子在所述导电相中以海岛形式存在，所述第二相为含有导电相的晶界相，所述导电相的组成与 第一相中的导电相，并且具有将第一相三维电连接的结构。

公开(公告)号：US08736024B2

公开(公告)日：2014-05-27

申请号：US13690183

申请日：2012-11-30

Applicant: Toto Ltd.

Inventor： Shogo Shimada ,  Yasutaka Ushijima ,  Atsushi Teramoto

IPC: H01L29/12 ,  C04B35/00

CPC classification number: H01L29/12 ,  C04B35/117 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3232 ,  C04B2235/3234 ,  C04B2235/3267 ,  C04B2235/3272 ,  C04B2235/3418 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/5472 ,  C04B2235/77 ,  C04B2235/80 ,  C04B2235/85 ,  C04B2235/96 ,  H01B1/16

Abstract: There is provided a semiconductive ceramic sintered compact that has a conductivity high enough to attain static electricity removal and antistatic purposes and, at the same time, has excellent mechanical properties or stability over time. The semiconductive ceramic sintered compact includes a main phase and a conductive phase, wherein the main phase is a ceramic sintered phase including Al2O3 particles, the area ratio of the conductive phase to the main phase is 0% (exclusive) to 10% (inclusive), and the conductive phase includes two or more metals selected from Mn (manganese), Fe (iron), and Ti (titanium) and has a composition meeting a relation of Mn/(Ti+Mn+Fe)>0.08 or Mn/Ti>0.15.

Abstract translation: 提供了一种半导体陶瓷烧结体，其具有足够高的导电性以获得静电去除和抗静电目的，并且同时具有优异的机械性能或随时间的稳定性。 半导体陶瓷烧结体包括主相和导电相，其中主相是包括Al 2 O 3颗粒的陶瓷烧结相，导电相与主相的面积比为0％（排除）至10％（含） ，导电相包含选自Mn（锰），Fe（铁）和Ti（钛）中的两种以上的金属，其组成满足Mn /（Ti + Mn + Fe）> 0.08或Mn / Ti > 0.15。