A103 27 Methods of Sampling Ferro Alloys Withdrawn March 1939 A104 Withdrawn 1939 Methods of Chemical Analysis of Ferro Alloys C528 71 Method of Test for Compressive Strength of High Strength Ceramic Materials Withdrawn 1974 D408 37 Tentative Method of Test for Grindability of Coal by the Ball Mill Method Withdrawn 1950 D410
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High purity niobium metal is produced by aluminothermic reduction67 of high purity niobium oxide with aluminium lime and fluorspar Electron beam melting is commonly used to increase the purity of niobium To produce ferro niobium containing about 60 per cent niobium iron oxide powder is added to the mixture prior to reduction Albrecht 1989 .
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KRB1 Manufacturing method of ferro molybdenum A method for manufacturing ferromolybdenum through reductive reaction is provided to obtain high purity ferromolybdenum by blending iron and molyoxide MoO3 powder as starting materials and adding a crosslinking agent to the blend molding and firing the mixture and heating the molded material under reductive atmosphere.
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Applying a gel coat high viscosity as a covering liquid allowed a high thickness coating to be obtained However the thickness was very inhomogeneousit varied from 2 to 30 μm The most promising coating was gained with an acetone based dispersion of ceramic powders with a viscosity of Pa s.
Ceramic dielectric compositions for manufacturing multilayer ceramic capacitors MLCC s having very high dielectric constants between about 8 000 19 000 and meeting the Z5U and Y5V EIA Electronic Industries Association specifications for temperature coefficient of capacitance are prepared from barium titanate host materials based upon the formulation Ba 1 x Ca x Ti 1 y z Sn y Zr z O 3
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