Sintering is based on atomic diffusion, the atoms in the powder particle diffuse into surrounding particles eventually forming a solid or porous material. The sintering process is taking a powder, putting it into a mold and heating it to below its melting point. A metastable cubic phase, isostructural with γ-Li 2TiO 3 is referred to as α-Li 2TiO 3 it is formed at low temperatures, and transforms to the more stable β-phase at 400 ☌. A high-temperature cubic phase exhibiting solid-solution type behavior is referred to as γ-Li 2TiO 3 and is known to form reversibly above temperatures in the range 1150-1250 ☌. The most stable lithium titanate phase is β-Li 2TiO 3 that belongs to the monoclinic system. In recent years, along with other lithium ceramics, metatitanate pebbles have been the subject of research efforts towards tritium breeding materials in nuclear fusion applications. It is frequently utilized as a flux due to its good stability. It is also used as an additive in porcelain enamels and ceramic insulating bodies based on titanates. It is a white powder with a melting point of 1,533 ☌ (2,791 ☏). Lithium metatitanate is a compound with the chemical formula Li 2TiO 3.
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