Vacuum Furnace for Tungsten Carbide scrape recycling furnace /sintering furnace Description PT-V series vacuum furnace is widely used for heat treatment of metal materials in high vacuum,recursive,protective atmosphere,also used for heat treatment of special materials,such as carbonation process of carbon products development.
The toughening is attributed to these phases and thus is not significantly affected by the presence of SiC(w). Regarding the samples sintered with the AlNbased sintering additive, the presence of elongated Si3N4 grains was not reported and the improvement of toughness is directly related to the presence of SiC(w).
sintering boron Prior art date 1981-03-27 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Granted Application number FR8205167A Other languages French (fr) Other versions FR2502612B1 (en Inventor Mamoru
Therefore, we have undertaken this work of producing the sintered composites of B4C under high pressure and temperature with the aid of titanium carbide and cobalt as the binding materials. Experimental Procedure The high pressure sintering of boron carbide samples was carried out in a 200-ton cubic press of H.Tracy Halls design.
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Furnace fumes, dust, and slags can accelerate these reactions. In the high temperature portions of a furnace, it is good practice to separate reactive refractories by an intermediate course of refractory brick which will not react with either at the temperature of operation, or by a joint of non-reactive bonding mortar.
It was eventually sintered to a density of 93% TD (significantly lower than other thoria fuels described here). The fuel pellets used as reference fuels in AECLs WR 1 irradiations were manufactured using a process of attrition milling, pan drying (forming cakes), granulation, pressing and sintering.
The whole of the superstructure of such a furnace-hearth, walls, roof, ports, ends, is built of basic refractories These furnaces were introduced in Europe in about 1935, the object being to make it possible to operate at a higher temperature than that possible with basic O.H. furnaces having a silica roof.
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But as the particle sizes were smaller, the CVD powders could be sintered to nearly full density at 1600 *C for 2 h from the compacts prepared by cold isostatic pressing and at 1550"C from the compacts by a colloidal technique [9.19, 20]. The sintering temperatures are 50-100"C lower than those of the mullitized/milled powders.
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