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High Temperature Anti-Reflective Coating

Background:

Medical device application

Requirement:
Maintaining the integrity of applied optical coating on sapphire window. An anti-reflective (AR) coating needs to be applied over sapphire window and survive processing at high temperature brazing as high as 1,000C.

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Highly Thermal Shock Resistant Glass to Metal Seal

Background:

Industry – Aerospace
Materials Used – Oxygen Free Copper, Borosilicate Glass (Corning 7740)

Requirement:
Requirement for maintaining robust hermetic seal under extremes in thermal gradient. Where liquid hydrogen needed to be stored

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Direct Bonding of Ceramic and Metal

Background:

Medical device application

Requirement:
Requirement was to seal a component oxide ceramic and Ti metal alloy with nothing in-between. The most common sealing material in medical implant is pure Au. In this situation,

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Highly Thermal Cycle Resistant Ceramic to Metal Seal

Background:

Aerospace application

Requirement:
Requirement was to seal two metal ring washers with a ceramic disc sandwiched for a thermal cycle application between room temperature and 850 °C while its hermeticity is continuously

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Flux-less Soldering

Background:

Optical transmission

Requirement:
Requirement was to Indium solder and hermetically seal quartz glass window in SST housing with no flux for an ultrahigh vacuum application.

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Graphite Metallization

Background:

Defense application

Requirement:
Requirement was to metallize graphite and the metallization was for a structural bonding a ceramic to this metallized graphite.

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