IT1109062B - Sintering silicon nitride compacts in powder packing - in nitrogen at atmospheric pressure, without wt. loss - Google Patents
Sintering silicon nitride compacts in powder packing - in nitrogen at atmospheric pressure, without wt. lossInfo
- Publication number
- IT1109062B IT1109062B IT6977778A IT6977778A IT1109062B IT 1109062 B IT1109062 B IT 1109062B IT 6977778 A IT6977778 A IT 6977778A IT 6977778 A IT6977778 A IT 6977778A IT 1109062 B IT1109062 B IT 1109062B
- Authority
- IT
- Italy
- Prior art keywords
- atmospheric pressure
- loss
- nitrogen
- silicon nitride
- powder packing
- Prior art date
Links
- 229910052581 Si3N4 Inorganic materials 0.000 title abstract 4
- 239000000843 powder Substances 0.000 title abstract 2
- 238000005245 sintering Methods 0.000 title abstract 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title 2
- 229910052757 nitrogen Inorganic materials 0.000 title 1
- 238000012856 packing Methods 0.000 title 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 title 1
- 229910007277 Si3 N4 Inorganic materials 0.000 abstract 1
- 239000000654 additive Substances 0.000 abstract 1
- 230000000996 additive effect Effects 0.000 abstract 1
Landscapes
- Ceramic Products (AREA)
Abstract
A sintered Si3N4 article is prepd. By (a) sintering an Si3 N4 compact, density >=1.3 g/cm3 in N2 at atmospheric pressure with the compact embedded in a protectice powder of Si3N4 and/or BN and 3-20 wt.% sinterisation additive(s) for Si3N4. Sintered compacts of high density and homogeneity can be formed with thermal decompsn. limited without using atmospheric pressure, e.g. a compact having density 3.05 g/cm3 was prepd. with wt. loss 0.5 wt.% and no detectable structural dishomogeneities.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT6977778A IT1109062B (en) | 1978-12-05 | 1978-12-05 | Sintering silicon nitride compacts in powder packing - in nitrogen at atmospheric pressure, without wt. loss |
| GB7849193A GB2010913B (en) | 1977-12-23 | 1978-12-20 | Process for sintering silicon nitride compacts |
| JP15910178A JPS54148010A (en) | 1977-12-23 | 1978-12-22 | Sintering silicon nitride compressed body |
| DE2855859A DE2855859C2 (en) | 1977-12-23 | 1978-12-22 | Process for making a silicon nitride sintered article |
| FR7836174A FR2412510B1 (en) | 1977-12-23 | 1978-12-22 | PROCESS FOR SINTERING SILICON NITRIDE COMPRESSED ARTICLES |
| SU792783154A SU1074402A3 (en) | 1978-12-05 | 1979-06-22 | Method of producing silicon nitride-base articles |
| US06/180,725 US4354990A (en) | 1977-12-23 | 1980-08-25 | Process for sintering silicon nitride compacts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT6977778A IT1109062B (en) | 1978-12-05 | 1978-12-05 | Sintering silicon nitride compacts in powder packing - in nitrogen at atmospheric pressure, without wt. loss |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IT7869777A0 IT7869777A0 (en) | 1978-12-05 |
| IT1109062B true IT1109062B (en) | 1985-12-16 |
Family
ID=11312810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT6977778A IT1109062B (en) | 1977-12-23 | 1978-12-05 | Sintering silicon nitride compacts in powder packing - in nitrogen at atmospheric pressure, without wt. loss |
Country Status (2)
| Country | Link |
|---|---|
| IT (1) | IT1109062B (en) |
| SU (1) | SU1074402A3 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2458023C1 (en) * | 2011-03-11 | 2012-08-10 | Федеральное государственное бюджетное учреждение науки Институт структурной макрокинетики и проблем материаловедения Российской академии наук | Method of producing silicon nitride-based sintered articles |
-
1978
- 1978-12-05 IT IT6977778A patent/IT1109062B/en active
-
1979
- 1979-06-22 SU SU792783154A patent/SU1074402A3/en active
Also Published As
| Publication number | Publication date |
|---|---|
| SU1074402A3 (en) | 1984-02-15 |
| IT7869777A0 (en) | 1978-12-05 |
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