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A silicon rectifier in which carefully controlled, nondestructive internal avalanche breakdown across the entire junction area protects the junction surface, thereby eliminating local heating that would impair or destroy the reverse blocking ability of the rectifier.

Related Terms

ALKALINE BOIL-OUT

Employed to remove oil and grease deposits from heating surfaces.

ANNEAL

To soften by heating and allowing to cool slowly.

AIR CONDITIONER

A refrigeration device cooling or heating air.

ASME SECTION VI

Recommended rules for the care and operation of heating boilers.

INTERFACIAL TENSION (IFT)

The energy per unit area present at the boundary of two immiscible liquids. It is usually expressed in dynes/cm (ASTM Designation D 971.)

REVERSING VALVE

Device used to reverse direction of the refrigerant flow depending upon whether heating or cooling is desired.

ARC WELDING

A process where coalescence is obtained by heating with an electric arc.

HIGH

An area of high pressure. Since a high is, on a synoptic chart, always associated with anticyclonic circulation, the term is used interchangeably with ANTICYCLONE

HORN ANTENNA

An antenna consisting of a waveguide the cross-sectional area of which increases toward the open end. Often shortened to HORN.

PERMEABILITY

The relationship of flow per unit area to differential pressure across a filter medium.
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