Light-transmitting silicon nitride

Details Light-transmitting silicon nitride Light-transmitting silicon nitride

1980-01-23

1981-07-21

Vertiz, O. R.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

C04B 3558

Patent

active

042796563

ABSTRACT:
A polycrystalline silicon nitride body having a density of at least 99.5% of the theoretical density of silicon nitride, a thickness ranging from about 0.15 mm up to but less than 0.4 mm, a minimum in-line transmission of about 5% of radiant energy at wavelengths ranging from about 0.9 micron to about 2.5 microns, and a minimum in-line transmission of about 10% at wavelengths ranging from about 2.5 microns to about 4.5 microns.

REFERENCES:
patent: 4124403 (1978-11-01), Greskovich et al.

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