RO99211B1 - Process for producing self-supporting composite ceramic products, provided with cavities resulting by the reversely reproducing the shape of a disposable pattern - Google Patents
Process for producing self-supporting composite ceramic products, provided with cavities resulting by the reversely reproducing the shape of a disposable patternInfo
- Publication number
- RO99211B1 RO99211B1 RO129342A RO12934287A RO99211B1 RO 99211 B1 RO99211 B1 RO 99211B1 RO 129342 A RO129342 A RO 129342A RO 12934287 A RO12934287 A RO 12934287A RO 99211 B1 RO99211 B1 RO 99211B1
- Authority
- RO
- Romania
- Prior art keywords
- shape
- composite ceramic
- ceramic products
- oxidation
- pattern
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 3
- 239000000919 ceramic Substances 0.000 title abstract 2
- 239000002131 composite material Substances 0.000 title abstract 2
- 239000002184 metal Substances 0.000 abstract 4
- 229910052751 metal Inorganic materials 0.000 abstract 4
- 230000003647 oxidation Effects 0.000 abstract 3
- 238000007254 oxidation reaction Methods 0.000 abstract 3
- 239000000945 filler Substances 0.000 abstract 2
- 230000008595 infiltration Effects 0.000 abstract 2
- 238000001764 infiltration Methods 0.000 abstract 2
- 239000011159 matrix material Substances 0.000 abstract 2
- 150000002739 metals Chemical class 0.000 abstract 1
- 239000007800 oxidant agent Substances 0.000 abstract 1
- 230000001590 oxidative effect Effects 0.000 abstract 1
- 230000003362 replicative effect Effects 0.000 abstract 1
Landscapes
- Compositions Of Oxide Ceramics (AREA)
Abstract
Inventia se refera la un procedeu de obtinere a produselor ceramice compozite, autoportante, având cavitati rezultate prin reproducerea inversa a formei unui model consumabil, conform caruia se împacheteaza un model consumabil cu forma si configuratia suprafetelor prestabilite, realizat cu mijloace uzuale într-un pat de umplutura corespunzatoare pentru reproducerea inversa a geometriei modelului si a configuratiei de pe suprafata acestuia si permeabil la oxidant si la infiltrarea matricei policristaline, care va rezulta prin oxidarea metalului primar, care se alege dintr-un grup cunoscut de metale si este, de preferinta Al. în continuare, se înlocuieste respectivul model consumabil cu o cantitate necesara de metal primar, prin oxidarea si, respectiv, consumarea caruia, în conditii din proces, în sine cunoscute, se formeaza în patul de umplutura, prin replica inversa o cavitate cu suprafetele prefasonate pe masura infiltrarii matricei policristaline rezultate prin oxidarea metalului pr imar în masa de umplutura permeabila mentionata.The invention relates to a process for obtaining self-supporting composite ceramic products having cavities resulting from the reverse reproduction of the shape of a consumable pattern according to which a consumable pattern is packed with the shape and configuration of the predetermined surfaces, made by common means in a bed of the corresponding fill for the reverse reproduction of the geometry of the pattern and the configuration on its surface and permeable to the oxidant and to the infiltration of the polycrystalline matrix which will result from the oxidation of the primary metal selected from a known group of metals and is preferably Al. Thereafter, the consumable model is replaced with a required amount of primary metal, by oxidation and consumption of which, under process conditions known per se, is formed in the bed of filler, by reverse replicating a cavity with the preformed surfaces the degree of infiltration of the polycrystalline matrix resulting from oxidation of the parent metal into the permeable filler mass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO129342A RO99211B1 (en) | 1987-08-05 | 1987-08-05 | Process for producing self-supporting composite ceramic products, provided with cavities resulting by the reversely reproducing the shape of a disposable pattern |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO129342A RO99211B1 (en) | 1987-08-05 | 1987-08-05 | Process for producing self-supporting composite ceramic products, provided with cavities resulting by the reversely reproducing the shape of a disposable pattern |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| RO99211B1 true RO99211B1 (en) | 1990-07-30 |
Family
ID=40907287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO129342A RO99211B1 (en) | 1987-08-05 | 1987-08-05 | Process for producing self-supporting composite ceramic products, provided with cavities resulting by the reversely reproducing the shape of a disposable pattern |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO99211B1 (en) |
-
1987
- 1987-08-05 RO RO129342A patent/RO99211B1/en unknown
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