The toughened foamed glass ceramic portion includes a first glassy phase and a second glassy phase, wherein the second glassy phase puts the first glassy phase into compression.

The fired ceramic body includes a base layer that comprising a glassy phase and a refractory phase, the glassy phase being capable of wetting a substrate at an application temperature.

The mechanical strength can be increased by crystallizing the continuous cordierite glassy phase of the article.

The product may also comprise silicon carbide, which may be derived from the carbothermal reduction, and a glassy phase.

Tg glass transition temperature Tyler Tyler mesh size, or Tyler standard sieve series

The second elastomer has a glass transition temperature greater than the first glass transition temperature.

with a glass transition temperature of 210 °C

a glass transition point (Tg) of 226 °C

a glass transition point (Tg) of 226 °C

A dental porcelain composition comprises an amorphous glass phase with a maturing temperature less than about 850 °C, wherein the amorphous glass phase, in one embodiment, comprises (I).

The crystal phase is formed in situ in the glass phase, with the transition metal ions preferentially partitioning into the crystalline sites from the glass phase.

Said vitroceramic element comprises a glass phase that is resistant to cracking and a crystal phase which consists of leucite crystals and is distributed in a substantially homogeneous manner in the glass phase.

According to the invention the layer comprises a material including a hybrid of a fluoropolymer and a glass phase.

Said oxide contains vanadium with a valence no greater than 4 and a glass phase.

The binder material can include a vitreous phase material, a crystalline phase material, or both.

In consequence, all heavy metals and heavy metal compounds are incorporated in the molten vitreous mass.