Liquid-phase sintering advantages

Liquid-phase sintering offers two significant advantages over solid-state sintering. First, it is much more rapid second, it results in uniform densifica-tion. As discussed below, the presence of a liquid reduces the friction between... 

The liquid phase temperature of Ti(C,N) -cermets powder compress is lowered with addition of Mo and Cu metal, which is advantageous to the liquid phase sintering. 

Though the term "slurry refers to a suspension of fine solid particles in a liquid, the term slurry reactor is often used for a three-phase system, where both gas bubbles and solid particles are suspended in a liquid phase. For a solid/liquid/gas process, slurry reactors have two obvious advantages the possibilities for very large solid/liquid surface areas and for good heat transfer to the reactor wall. Therefore the volumetric capacity of slurry reactors can be relatively large. However, effective separation of the fine catalyst from the liquid phase may offer considerable technical problems. One possibility is an external separation, e.g. with centrifuges or hydrocyclones, and a transport of a concentrated catalyst slurry back into the reactor. More often internal filters are used, usually consisting of porous tubes (sintered stainless steel, or ceramics), that are cleaned every few minutes by a periodic reversal of the flow. 

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