Abstract:
Die vorliegende Erfindung betrifft ein Verfahren zum Bearbeiten von metallisierten Keramiksubstraten sowie ein Metall-Keramik-Substrat, welches nach diesem Verfahren erhalten wird.
Abstract:
A metal-on-ceramic substrate comprises a ceramic layer (210), a first metal layer (240), and a bonding layer (220) joining the ceramic layer to the first metal layer. The bonding layer includes thermoplastic polyimide adhesive that contains thermally conductive particles. This permits the substrate to withstand most common die attach operations, reduces residual stress in the substrate, and simplifies manufacturing processes. The thermally conductive particles are preferably chosen from the group consisting of silver, copper, gold, graphene, carbon nanotubes, hexagonal BN, wurtzitic BN, cubic BN, BN nanotubes, diamond, AIN, and Si 3 N 4. The process for creating the circuit substrate comprises: placing the bonding layer between the ceramic layer and the first metal layer; applying pressure to bond the ceramic layer to the first metal layer using the bonding layer; and curing the bonding layer.
Abstract:
Durch die lokale Verdickung einer Wärmedämmschicht mit einem zweiten Material kann das Wärmedämmschichtsystem länger oder bei höheren Temperaturen eingesetzt werden.
Abstract:
Cutting elements include a diamond-bonded body attached with a substrate. The substrate has a coercivity of greater than about 200 Oe, and has a magnetic saturation of from about 73 to 90. The diamond-bonded body has a compressive stress at the surface of greater than about 0.9 GPa after heat treatment, and greater than about 1.2 GPa prior to heat treatment.
Abstract:
The disclosed piezoelectric material includes a perovskite-type metal oxide (Na x Ba 1-y )(Nb y Ti 1-y )O 3 , where 0.83≤x≤0.95, 0.85≤y≤0.95, 0.95≤x/y≤1.05, as a main component, at least one of Mn and Ni, and Mg. The Ni content is ≤5 mol%, the Mn content is ≤0.5 mol%, provided that the Mn and Ni contents are not simultaneously 0, and the Mg content is between 0.1 and 2 mol% based on the perovskite-type metal oxide.
Abstract:
Part made of a ceramic comprising at least one metalized outer surface, comprising a compositionally graded coating, said coating successively comprising from the outer surface toward the ceramic in the direction of the thickness of the coating: a surface layer formed by a metal M; a layer of an oxide of the metal M: MkOw where k ranges from 1 to 3 and w ranges from 1 to 4; a layer of a reaction compound between the oxide of a metal M and the ceramic which has a composition gradient, which is preferably continuous, in the direction of the thickness of said layer, with a content of metal M that decreases, preferably continuously, toward the ceramic. Process for preparing this part. Process for assembling a first part made of a ceramic with a second part made of a metal or made of a ceramic in which at least one surface of a first part made of a ceramic is metalized by said process. Metal M is preferably Cu.
Abstract:
Gegenstand der Erfindung ist ein Bindemittel enthaltend Wasserglas und weiterhin ein Phosphat oder ein Borat oder beides. Ebenfalls Gegenstand der Erfindung ist ein Verfahren zum schichtweisen Aufbau von Formen und Kernen umfassend eine Baustoffmischung zumindest aus feuerfestem Formgrundstoff und das Bindemittel. Zur schichtweisen Herstellung der Formen und Kernen im 3-D-Druck wird der feuerfeste Formgrundstoff schichtweise aufgebracht und jeweils mithilfe des Bindemittels schichtweise selektiv bedruckt, sodass ein Körper entsprechend der Formen oder Kerne aufgebaut wird und die Formen oder Kerne nach Entfernen der ungebundenen Baustoffmischung freigesetzt werden.
Abstract:
본 발명은 세라믹 본체와 상기 세라믹 본체의 내부에 위치하는 내부 전극을 포함하는 소자부와, 상기 세라믹 본체의 양측면을 각각 덮는 측면 전극과 상면 양측의 일부를 각각 덮는 상부 전극 및 하면 양측의 일부를 각각 덮는 하부 전극을 구비하는 제 1 외부 전극 및 제 2 외부 전극을 포함하는 외부 전극부 및 전기 절연성 물질로 형성되며, 상기 상부 전극을 포함하는 영역에 코팅되어 형성되는 나노 박막층을 포함하는 나노 박막층을 구비하는 적층 세라믹 칩 부품과 이의 제조 방법 및 이를 위한 원자층 증착 장치를 개시한다.
Abstract:
A translucent alumina substrates, as defined herein, are disclosed along with methods of making translucent alumina substrates via such methods as tape casting. The translucent alumina substrates have advantages over prior filaments due to their quality, including total transmittance, and surface qualities, along with the simplicity of making these materials via scalable processes, such as tape casting.