Claims
- 1. A massive partially crystalline aluminosilicate material comprising a plurality of expanded closed cell structures containing nitrogen gas.
- 2. A massive aluminosilicate according to claim 1, the apparent density whereof is comprised between 200 and 700 kg/m.sup.3.
- 3. A massive aluminosilicate according to claim 1 whose coefficient of thermal insulation .gamma. is approximately 0.07 W/m C.
- 4. A massive aluminosilicate according to claim 1, whose thermal diffusivity is approximately 3.times.10.sup.-3 cm.sup.2 /S.
- 5. A massive aluminosilicate according to claim 1, whose compressive strength is higher than about 3.times.10.sup.6 Pa.
- 6. A massive aluminosilicate according to claim 1, whose coefficient of thermal expansion measured between 20.degree. and 500.degree. C. is equal to about 7.4.times.10.sup.-6.degree.K..sup.-1.
Priority Claims (1)
Number |
Date |
Country |
Kind |
85 03694 |
Mar 1985 |
FRX |
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Parent Case Info
This is a continuation of application Ser. No. 838,914, filed Mar. 12, 1986, now abandoned.
US Referenced Citations (3)
Number |
Name |
Date |
Kind |
2837873 |
Lynsavage |
Jun 1958 |
|
4186021 |
Chyung et al. |
Jan 1980 |
|
4591537 |
Aldinger et al. |
May 1986 |
|
Foreign Referenced Citations (1)
Number |
Date |
Country |
141515 |
May 1980 |
DDX |
Non-Patent Literature Citations (1)
Entry |
Taylor K. M. et al. "Some Properties of Aluminum Nitride" J. of Electrochem Soc. Apr. 1960 pp. 308-314. |
Continuations (1)
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Number |
Date |
Country |
Parent |
838914 |
Mar 1986 |
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