Glass-ceramic with specific thermal expansion behavior

Details Glass-ceramic with specific thermal expansion behavior Glass-ceramic with specific thermal expansion behavior

1986-11-19

1989-07-25

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Devitrified glass-ceramics

501 7, 501 55, 501 63, 501 67, 501 69, 501 70, C03C 322, C03C 1014

Patent

active

048513725

ABSTRACT:
Base-glasses for glass ceramics cotaining h-quartz solid solution crystals, with a maximum relative length variation of 1.times.10.sup.-5 and a linear thermal expansion coefficient less than 0.1.times.10.sup.-6 /K, comprise (in weight percent) 50-65 SiO.sub.2, 18-27 Al.sub.2 O.sub.3, 0-10 P.sub.2 O.sub.5,0-1 B.sub.2 O.sub.3, 2.5-4 Li.sub.2 O, 0-2 Na.sub.2 O, 0-2 K.sub.2 O, 0-0.5 MgO, 1-5 ZnO, 1-4 CaO, 1-5 BaO, 0-5 TiO.sub.2, 0-3 ZrO.sub.2 and 0-1.5 As.sub.2 O.sub.3.

REFERENCES:
patent: 3625718 (1971-12-01), Petticrew
patent: 3834911 (1974-09-01), Hammel
patent: 3907577 (1975-09-01), Kiefer et al.
patent: 4438210 (1984-03-01), Rittler
patent: 4461839 (1984-07-01), Rittler
Jacobs, S. F., et al., "Dimensional Stability of Fused Silica and Several Ultralow Expansion Materials, Thermal Expansion Materials", Thermal Expansion-1973, AIP Conference Proceedings, pp. 280-296.
Bennett, S. J., et al., "An Absolute Interferometric Dilatometer", Journal of Physics E: Scientific Instruments 1977, vol. 10, pp. 525-530.
J. W. Berthold III and S. F. Jacobs, "Ultraprecise Thermal Expansion Measurements of Seven Low Expansion Materials" vol. 15, Oct. 1976, pp. 2344-2347.
Jacobs, et al., Appl. Opt. 23, 17, 3014 (1984).

Affiliated with

Also associated with

Rating

Glass-ceramic with specific thermal expansion behavior does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Glass-ceramic with specific thermal expansion behavior, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Glass-ceramic with specific thermal expansion behavior will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2358134