摘要:
Die vorliegende Erfindung betrifft einen neuartigen Verbundwerkstoff, ein Verfahren zu dessen Herstellung sowie die Verwendung dieses Verbundwerkstoffs.
摘要:
The present invention relates to sintered refractory roofing granules and a method for making such granules. Disclosed are white granules of increased total solar reflectance (TSR). A method including the step of calcining pure clays without adding any flux or other sintering additives is disclosed.
摘要:
Materials that seamlessly transition from opaque to transparent or translucent, such as advance ceramics to glass structures, which can be directly and seamlessly bonded without the use of an intermediate adhesive or use of a frame are disclosed. That is, a ceramic to glass structure can be bonded directly and seamlessly and without any mechanical joints, connective tissue or adhesives such as caulking or epoxy. Such ceramic to glass materials can be prepared by sintering a ceramic with a glass to form the ceramic-glass structure in which the interface is visually abruptly or in which the material is a graded composition with the desired rate of growth from one material to the other.
摘要:
The present invention relates to a method of preparing translucent ceramic material where the method comprises the formation of a well dispersed aqueous solution of the ceramic material and filtering the solution. The filtering results in a pressure exerted in the filtrate making the obtained filter cake translucent.
摘要:
La présente invention concerne un procédé de fabrication d'une pièce en matériau composite à matrice céramique, le procédé comportant au moins l'étape suivante : - infiltration d'une préforme fibreuse avec une composition fondue comprenant majoritairement en masse du silicium, la préforme fibreuse comprenant des fibres de carbure de silicium, une poudre de carbure de silicium étant présente dans la porosité de ladite préforme, la taille moyenne des cristallites de carbure de silicium dans la poudre étant inférieure à la taille moyenne des cristallites de carbure de silicium dans les fibres, une matrice céramique étant formée dans la porosité de la préforme fibreuse durant l'infiltration afin d'obtenir la pièce en matériau composite.
摘要:
The present invention provides a low cost preparation of ultra-low CTE and low dielectric loss high temperature co-fired ceramic (HTCC) substrates for highly integrated monolithic millimeter-wave integrated circuits (MMICs) utilized in high temperature environment. This HTCC zircon substrate is advantageous over currently available HTCC substrates in terms of cost effectiveness, excellent dielectric properties, close to zero thermal expansively, high thermal conductivity and good mechanical properties.