نتایج جستجو برای: nickel powder metallurgy
تعداد نتایج: 81839 فیلتر نتایج به سال:
Nickel titanium (NiTi) foams were made by combustion synthesis of powders with the help of ZrH2 as foaming agent and TiB2 as endothermic agent. In this paper, we investigated the effect of elemental powder size on the foaming. The powder size of Ni and Ti affected the ignition temperature of the combustion reaction, cell morphology and microstructure of the foams. The cell morphology of the foa...
Department of Bioscience and Buccal Diagnosis, São Jose dos Campos School of Dentistry, State University of São Paulo – UNESP, Av. Engenheiro Francisco José Longo, 777, 12245-000 São José dos Campos SP, Brazil National Institute of Technology, Av. Venezuela, 200, Centro, Rio de Janeiro RJ, Brazil Department of Materials, Air and Space Institute, CTA, Praça Mal. do Ar Eduardo Gomes, 14, 12904-00...
This paper describes an instrument capable of detecting flaws in “green-state” (prior to sintering) powder metallurgy (P/M) parts. The instrument uses a matrix of impedance measurements from a multiprobe array that contacts the surface of the P/M part. The array of measured data is processed to not only detect the presence of flaws but determine their location, size, and orientation as well. Ex...
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