Abstract
Publisher Summary This chapter discusses the process and application of liquid-phase sintering. A wide variety of ceramic materials can be prepared from powders by the process of liquid-phase sintering. In this process, conditions of temperature and powder composition are chosen so that a quantity of liquid, usually small, is formed between the remaining grains of the powder. Subsequent reshaping of the powder grains by transport of dissolved grain material through the liquid allows closer packing of the grains and densification of the material. The great benefit of liquid-phase sintering is that it allows the preparation of solid materials in systems where densification is otherwise difficult to achieve. It also confers substantial economic advantage for systems such as A12O3 or ZrO2, solid-state processing of which requires either high temperatures or very fine, disagglomerated powders. The pore phase in the system consists of the voids between the coated particles.
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