摘要:
A light-emitting element mounting substrate and a light-emitting device. The light-emitting element mounting substrate is composed of an alumina-based sintered body. The alumina-based sintered body contains 80 percent by mass or more of aluminum oxide with respect to 100% by mass of all constituent components. An O/Al atomic ratio of oxygen to aluminum in crystal grains of the aluminum oxide is less than 1.5.
摘要:
There are provided a light-emitting element mounting substrate having high bonding strength between a substrate main body and a metal portion, and a light-emitting device having high bonding strength between the substrate main body and the metal portion and high reliability. A light-emitting element mounting substrate includes a substrate main body (20) formed of a ceramic sintered body; and a silver-containing metal portion (2), a silver-containing region (4) existing in a portion of the substrate main body which faces the metal portion across a bonding portion bonding the substrate main body and the silver-containing metal portion. Accordingly, it is possible to increase bonding strength between the substrate main body (20) and the metal portion (2).
摘要:
There are provided a light-emitting element mounting substrate having high bonding strength between a substrate main body and a metal portion, and a light-emitting device having high bonding strength between the substrate main body and the metal portion and high reliability. A light-emitting element mounting substrate includes a substrate main body (20) formed of a ceramic sintered body; and a silver-containing metal portion (2), a silver-containing region (4) existing in a portion of the substrate main body which faces the metal portion across a bonding portion bonding the substrate main body and the silver-containing metal portion. Accordingly, it is possible to increase bonding strength between the substrate main body (20) and the metal portion (2).
摘要:
This invention provides a colored zirconia-based sintered body, mainly composed of zirconia containing a stabilizer, which contains alumina and nickel spinel, and has a novel color tone, and a method for manufacturing such a zirconia-based sintered body. The colored zirconia-based sintered body is applicable not only to a highly decorative product such as a watch, but also to knives, tweezers, machining jigs and holding jigs for electronic parts, and sliding members.
摘要:
This invention provides a colored zirconia-based sintered body, mainly composed of zirconia containing a stabilizer, which contains alumina and nickel spinel, and has a novel color tone, and a method for manufacturing such a zirconia-based sintered body. The colored zirconia-based sintered body is applicable not only to a highly decorative product such as a watch, but also to knives, tweezers, machining jigs and holding jigs for electronic parts, and sliding members.
摘要:
The present invention provides an aluminum oxide-titanium nitride sintered body having good resistance to electrostatic damage and small variation in volume resistivity. The aluminum oxide-titanium nitride sintered body is mainly composed of 65 to 85% by weight of aluminum oxide and titanium nitride constituting the rest. The average of the sum of the crystal grain sizes of the aluminum oxide and the titanium nitride is 0.4 to 2.0 μm. The aluminum oxide has a mean crystal grain size of 0.5 to 2.2 μm and the titanium nitride has a mean crystal grain size of 0.2 to 1.6 μm.
摘要:
The present invention provides an aluminum oxide-titanium nitride sintered body having good resistance to electrostatic damage and small variation in volume resistivity. The aluminum oxide-titanium nitride sintered body is mainly composed of 65 to 85% by weight of aluminum oxide and titanium nitride constituting the rest. The average of the sum of the crystal grain sizes of the aluminum oxide and the titanium nitride is 0.4 to 2.0 μm. The aluminum oxide has a mean crystal grain size of 0.5 to 2.2 μm and the titanium nitride has a mean crystal grain size of 0.2 to 1.6 μm.