High strength glass-ceramics

This invention describes a very strong type of glass-ceramic material. It's made by carefully combining specific amounts of common glass ingredients like silica, alumina, and lithium oxide, along with small amounts of phosphorus and zirconium. The key to its strength is a high percentage of tiny, interlocked lithium disilicate crystals formed within the glass, which give it excellent resistance to breaking and high compressive strength.

Why it matters: Given the short two-year gap since filing, no fundamental shifts in glass-ceramic manufacturing or material science have occurred. The primary challenge remains the precise control over composition and thermal processing to consistently achieve the desired microstructure and mechanical properties.

Status: Not in forceListed as no longer active. The specific reason is not in the record we hold.
How hard to build: SpecializedGlass-ceramic formulation and thermal processing

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