منابع مشابه
Metals Polymers Ceramics
New Nissan to feature complex aluminum castings The new Nissan GT-R features aluminum inner-door and rear-seat structures made from Alcoa’s proprietary vacuum die casting process (AVDC) at the company’s plant in Soest, Germany. Both components also feature new proprietary alloys developed by Alcoa. The new C-446 alloy, in combination with the unique advantages of the AVDC process, enabled Alcoa...
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Preferred crystallographic orientation, or texture, occurs almost universally, both in natural and man-made systems. Many components and devices in electronic and magnetic systems are fabricated from materials that have crystallographic texture. With the rapidly increasing use of thin film technology, where sharp axisymmetric crystallographic texture normal to the film plane is frequently obser...
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A general method for brazing ceramics to metals using a compliant metallic foam as a buffer layer has been developed. Using stainless steel foams, bonds between alumina and 316 stainless steel with shear strengths up to 33 MPa have been achieved. The resultant ductility enhances the resistance of the joint to thermal cycling; AlN-Inconel 600 bonds exhibited good thermal shock resistance. Alumin...
متن کاملMAX phases : Bridging the gap between metals and ceramics MAX phases : Bridging the gap between metals and ceramics
(C re d it: C re d it: R ad ov ic a nd B en ite z; T A M U .) T he term “MAX phases” was coined in the late 1990s and applies to a family of 60+ ternary carbides and nitrides that share a layered structure as illustrated in Figures 1 and 2. They are so called because of their chemical formula: Mn+1AXn —where n = 1, 2, or 3, where M is an early transition metal, A is an A-group element (specific...
متن کاملDislocations and Grain Boundaries in Ceramics and Metals
This paper is offered as a tribute to the late Gareth Thomas and the celebration of his career using transmission electron microscopy. His early work on dislocations and twin boundaries in metals suggested indirect methods for determining the stacking-fault energies (SFEs) of Al [1] and Ni [2] and subsequently examined questions on how the measured values of SFEs of copper alloys change when th...
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ژورنال
عنوان ژورنال: Journal of the Japan Welding Society
سال: 1988
ISSN: 0021-4787,1883-7204
DOI: 10.2207/qjjws1943.57.274