Saint-gobain Ceramics & Plastics, Inc.

John Walter Locher

Steven Anthony Zanella

Christopher D Jones

Ralph Lampson MacLean, Jr

Herbert Ellsworth Bates

Matthias Mandelartz

Jeffrey B Rioux

Vincent Pluen

Brian C Furchner

Kathleen R Farrell

Eric S Carlson

Fery Pranadi

Marc Ouellette

Jan Jozef Buzniak

Vitali Tatartchenko

Abbie M Jennings

Guilford L Mack, Iii

Joseph M Collins

Ralph Lampson Maclean

Various single crystals are disclosed including sapphire. The single crystals have desirable geometric properties, including a width not less than about 15 cm and the thickness is not less than about 0.5 cm. The single crystal may also have other features, such as a maximum thickness variation, and as-formed crystals may have a generally symmetrical neck portion, particularly related to the transition from the neck to the main body of the crystal. Methods and for forming such crystals and an apparatus for carrying out the methods are disclosed as well.

Method of making a sapphire component including machining a sapphire single crystal

Method of forming a single crystal sheet using a die having a thermal gradient along its length

The present disclosure is directed to an apparatus and method for growing a sapphire sheet via edge-defined film-fed growth (EFG) including an angled heat shield with respect to the a side surface of a die tip. The present disclosure is further directed to an sapphire sheets and batches of such sheets having features such as a particular maximum low spot thickness.

Sapphire sheets and apparatus and method for producing sapphire sheets with angled heat shields

Method of forming a sapphire crystal using a melt fixture including thermal shields having a stepped configuration

A method and apparatus for the production of C-plane single crystal sapphire is disclosed. The method and apparatus may use edge defined film-fed growth techniques for the production of single crystal material exhibiting low polycrystallinity and/or low dislocation density.

C-plane sapphire method and apparatus

A non-planar ceramic composite and method of making are provided. The non-planar ceramic composite is transparent serves as transparent armor. In a non-limiting embodiment, the non-planar composite provides adequate protection from projectiles while exhibiting large surface areas and relatively low areal densities.

Transparent ceramic composite

Single crystals and methods for fabricating same

Method of forming a sapphire single crystal

A ceramic composite and method of making are provided. The ceramic composite is transparent and serves as transparent armor. The composite provides adequate protection from projectiles while exhibiting large surface areas and relatively low areal densities.

A ceramic composite and method of making are provided. The ceramic composite may be transparent and may serve as transparent armor. The ceramic portion of the composite may be single crystal sapphire. The composite may provide adequate protection from projectiles while exhibiting large surface areas and relatively low areal densities.

Transparent ceramic composite armor

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Amherst, NH, United States of America

John Walter Locher