The room-temperature densification method was developed for Li₂MoO₄

ceramic A ceramic is any of the various hard, brittle, heat-resistant and corrosion-resistant materials made by shaping and then firing an inorganic, nonmetallic material, such as clay, at a high temperature. Common examples are earthenware, porcelai ...

s and is based on the water-solubility of Li₂MoO₄. It can be used for the fabrication of Li₂MoO₄ ceramics instead of conventional thermal

sintering Clinker nodules produced by sintering Sintering or frittage is the process of compacting and forming a solid mass of material by pressure or heat without melting it to the point of liquefaction. Sintering happens as part of a manufacturing ...

. The method utilizes a small amount of aqueous phase formed by moistening the Li₂MoO₄ powder. The densification occurs during sample pressing as the solution incorporates the pores between the powder particles and recrystallizes. The contact points of the

particles In the physical sciences, a particle (or corpuscule in older texts) is a small localized object which can be described by several physical or chemical properties, such as volume, density, or mass. They vary greatly in size or quantity, from ...

provide a high pressure zone, where

solubility In chemistry, solubility is the ability of a substance, the solute, to form a solution with another substance, the solvent. Insolubility is the opposite property, the inability of the solute to form such a solution. The extent of the solub ...

is increased, whereas the pores act as a suitable place for the

precipitation In meteorology, precipitation is any product of the condensation of atmospheric water vapor that falls under gravitational pull from clouds. The main forms of precipitation include drizzle, rain, sleet, snow, ice pellets, graupel and hai ...

of the solution. Any residual water is removed by post-processing typically at 120 °C. The method is suitable also for Li₂MoO₄ composite ceramics with up to 30 volume-% of filler material, enabling the optimization of the

dielectric In electromagnetism, a dielectric (or dielectric medium) is an electrical insulator that can be polarised by an applied electric field. When a dielectric material is placed in an electric field, electric charges do not flow through the m ...

properties.

References

{{DEFAULTSORT:Room-temperature densification method Ceramic engineering Ceramic materials Materials science