Author: Dick, Santiago

A sapphire-dielectric-ring microwave resonator that operates in a "whispering-gallery" electromagnetic mode features a differential-thermal-expansion design that provides temperature compensation for ultrahigh frequency stability. 8.5" x 11"

Pages: 12
Item # N0003396
PRICE: $1.65

Author: NASA

A horizontal vibration technique has been suggested for stirring of melts in sealed Bridgman-type crystal-growth crucibles. The vibration method may be more effective than the conventional Accelerated Crucible Rotation Technique for magnetic garnet and other special crystals. NASA Tech Brief. 8.5" x 11"

Pages: 7
Item # N0321192
PRICE: $1.25

Author: NASA

Diamondlike carbon films produced with plasmas have high optical absoprtion. It has been found that the use of inert gases during the plasma process deposition causes a darkening of the films. The dual beam deposition process allows substantial increases in transmittance. 8.5" x 11"

Pages: 5
Item # P0121194
PRICE: $1

Author: Turlington, Thomas

A new temperature controller for quartz crystal resonators operates on less than 5W prime power and can heat a crystal from -10°C to +75°C in less than 45 sec. Temperature control is accurate to within 0.7°C. NASA Tech Brief. 8.5" x 11"

Pages: 15
Item # N0251192
PRICE: $2.25

Author: Vigoureux, P.

Excellent technical book on crystals and crystal resonators. Covers quartz crystals, piezo-electric phenomena, quartz resonators, resonators in electric circuits, luminous resonator, quartz oscillator, frequency and thermal coefficients, nature of vibrations, applications and crystal structure. Referenced and indexed. Highly recommended. 8.5" X 11"

Pages: 80
Item # B0371192
PRICE: $7.95