摘要:
A novel aluminum nitride material having a low room temperature volume resistivity is provided. The aluminum nitride material has an aluminum nitride main component and includes at least 0.03 mol % of europium oxide. The aluminum nitride material has an aluminum nitride phase and an europium-aluminum composite oxide phase. An aluminum nitride material also provided having an aluminum nitride main component, wherein a total content of europium oxide and samarium oxide is at least 0.09 mol %. The aluminum nitride material has an aluminum nitride phase and a composite oxide phase containing at least europium and aluminum.
摘要:
A ceramic member comprises a ceramic sintered body and a metallic member, which includes a metal element and is formed to be in contact with the ceramic sintered body. An affected layer around the metallic member of the ceramic sintered body has a thickness of 300 μm or less.
摘要:
A ceramic member is provided, including a ceramic sintered body and a metallic member, which includes a metal element, formed to be in contact with the ceramic sintered body. An affected layer around the metallic member of the ceramic sintered body has a thickness of 300 μm or less.
摘要:
An aluminum nitride sintered body is provided, including a polycrystalline structure in which grain boundary fracture toughness KICgb is 1.6 MPa·m1/2 or more. The grain boundary fracture toughness KICgb is determined by the equation KICgb=KIC·cos2(π·PIF/200), wherein KIC is fracture toughness (MPa·m1/2), and PIF is a percentage of the intergranular fracture (%).
摘要翻译:提供了一种氮化铝烧结体,其包括其晶界断裂韧性K u> u>> b>>为1.6MPa.m 1/2的多晶结构, 或者更多。 晶界断裂韧性K IC b b>>>> IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC (pi.PIF / 200),其中K是断裂韧性(MPa.m <0.01) ,PIF是晶间骨折的百分比(%)。
摘要:
There is provided a method for manufacturing an aluminum nitride single crystal, the method including the steps of: preparing a raw material composition containing: aluminum oxide and/or an aluminum oxide precursor which is converted into aluminum oxide by heating, and aluminum nitride and/or an aluminum nitride precursor which is converted into aluminum nitride by heating; heating the raw material composition at 1600 to 2400° C. to synthesize aluminum nitride; and causing crystal growth of the aluminum nitride to obtain an aluminum nitride single crystal. The method is capable of obtaining an aluminum nitride single crystal which is sufficiently large for practical use at low cost in a short time and has high productivity and wide usability.
摘要:
A method for manufacturing an aluminum nitride single crystal is provided, including the steps of preparing a raw material composition containing aluminum oxide and/or an aluminum oxide precursor which is converted into aluminum oxide by heating, and aluminum nitride and/or an aluminum nitride precursor which is converted into aluminum nitride by heating, heating the raw material composition at 1600 to 2400° C. to synthesize aluminum nitride, and causing crystal growth of the aluminum nitride to obtain an aluminum nitride single crystal.
摘要:
An aluminum nitride ceramic including aluminum nitride grains and grain boundary phases comprises a grain boundary phase-rich layer including more amount of the grain boundary phases in a surface layer of the aluminum nitride ceramic than in an inside of the aluminum nitride ceramic. The grain boundary phases in the grain boundary phase-rich layer include at least one of rare earth element and alkali earth element.
摘要:
An aluminum nitride ceramic including aluminum nitride grains and grain boundary phases comprises a grain boundary phase-rich layer including more amount of the grain boundary phases in a surface layer of the aluminum nitride ceramic than in an inside of the aluminum nitride ceramic. The grain boundary phases in the grain boundary phase-rich layer include at least one of rare earth element and alkali earth element.
摘要:
An aluminum nitride ceramic including aluminum nitride grains and grain boundary phases comprises a grain boundary phase-rich layer including more amount of the grain boundary phases in a surface layer of the aluminum nitride ceramic than in an inside of the aluminum nitride ceramic. The grain boundary phases in the grain boundary phase-rich layer include at least one of rare earth element and alkali earth element.
摘要:
An aluminum nitride sintered body includes a polycrystalline structure in which grain boundary fracture toughness KICgb is 1.6 MPa·m1/2 or more. The grain boundary fracture toughness KICgb can be determined by the following equation: KICgb=KCIC·cos2(π·PIF/200) where KIC is fracture toughness (MPa·m1/2), and PIF is a percentage of the intergranular fracture (%).