[3] This discovery evolved into Pyroceram, with β-spodumene as the crystalline phase, and was used in 1958 for the production of CorningWare cookware.
[5] It would be extensively explored over the next two decades and result in the creation of Visions cookware, by Corning France, in the late 1970s.
[7] After about 30 years of informal use as a standard in high-heat (≥1000 °C) applications, Pyroceram 9606 was approved by NIST as a certified reference material for thermal conductivity measurements.
For kitchenware, this ceramic-glass family has been composed approximately, as calculated from precursor glass batches in percent by weight on an oxide basis, of (or similar variations): Plus additional oxides and colorants depending on the product line being produced.
[8] In 1998, Corning registered Pyroceram as a trademark for clear glass-ceramic window glass for wood-burning stoves.