PL65349B3 - - Google Patents
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- PL65349B3 PL65349B3 PL139914A PL13991470A PL65349B3 PL 65349 B3 PL65349 B3 PL 65349B3 PL 139914 A PL139914 A PL 139914A PL 13991470 A PL13991470 A PL 13991470A PL 65349 B3 PL65349 B3 PL 65349B3
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- PL
- Poland
- Prior art keywords
- metals
- metal
- grain size
- crystals
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- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 150000002739 metals Chemical class 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 239000011195 cermet Substances 0.000 claims description 3
- 239000013078 crystal Substances 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 229910052783 alkali metal Inorganic materials 0.000 claims description 2
- 150000001340 alkali metals Chemical class 0.000 claims description 2
- 239000003638 chemical reducing agent Substances 0.000 claims description 2
- 239000006185 dispersion Substances 0.000 claims description 2
- 229910001092 metal group alloy Inorganic materials 0.000 claims description 2
- 229910044991 metal oxide Inorganic materials 0.000 claims description 2
- 150000004706 metal oxides Chemical class 0.000 claims description 2
- 239000005355 lead glass Substances 0.000 claims 1
- 230000002411 adverse Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000002241 glass-ceramic Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
Description
Opublikowano: 10.IV.1972 KI. 21c,54/05 MKP HOlc 7/00 UKD Wspóltwórcy wynalazku: Danuta Lusniak-Wójcicka, Olgierda Sztaba, Stanislaw Nowak, Edward Kaczmarczyk, Roman Rewilak Wlasciciel patentu: Zaklady Wytwórcze Podzespolów Telekomunikacyj¬ nych TELPOD Przedsiebiorstwo Panstwowe Wy¬ odrebnione, Kraków (Polska) Sposób wytwarzania grubych warstw rezystywnych cermetowych Przedmiotem wynalazku jest sposób wytwarzania grubych warstw cermetowych rezystywnych w za¬ stosowaniu do rezystorów stalych i zmiennych.Sposób wytwarzania grubych warstw rezystyw¬ nych cermetowych wedlug patentu nr 63323 polega na dodaniu do proszków szkiel krystalicznych o uziarnieniu ponizej 60 n, drobnodyspersyjnych proszków metali, tlenków metali wzglednie stopów metali o uziarnieniu ponizej 40 fi, oraz spoiwa orga¬ nicznego i poddaniu tak przygotowanej masy do¬ kladnemu wymieszaniu w celu uzyskania pasty re¬ zystywnej. Pasty te po naniesieniu na podloze ce¬ ramiczne, szklane lub szklano ceramiczne suszy sie i wypala w temperaturze 550—800°C, po czym pod¬ daje sie scisle kontrolowanej obróbce termicznej w celu osiagniecia struktury krystalicznej.Rozwiazanie to posiada te niedogodnosc, ze przy wprowadzeniu do past jako skladnika przewodzace¬ go dwu lub kilku metali istnieje mozliwosc nieho- mogenicznego wzajemnego rozmieszczenia ich w ma¬ sie. Wplywa to niekorzystnie na jednorodnosc war¬ stwy, a tym samym na powtarzalnosc parametrów elektrycznych wytworzonej warstwy.Celem wynalazku jest wyeliminowanie tych nie¬ dogodnosci.Zadanie to zostalo osiagniete przez zastosowanie, jako skladnika przewodzacego, krysztalów miesza¬ lo 15 2 nych typu stopów, uzyskanych droga wspólstrace- nia dwu lub kilku metali. Wspólstracanie polega na wprowadzeniu do roztworu stracajacego, redu¬ kujacego, roztworów zawierajacych sole stracanych metali lub ich tlenki. Dla zapewnienia równoczes¬ nego wytracania skladników metalicznych stosuje sie silne reduktory jak hydrazyna i jej pochodne wzglednie borowodorki metali alkalicznych. PLPublished: 10.IV.1972 KI. 21c, 54/05 MKP HOlc 7/00 UKD Inventors of the invention: Danuta Lusniak-Wójcicka, Olgierda Sztaba, Stanislaw Nowak, Edward Kaczmarczyk, Roman Rewilak The owner of the patent: Zakłady Wytwórcze Telecommunication Components TELPOD Przedsiebiorstwo Panstwowe Wyrebnie, Krakow (Poland) The method of producing thick cermet resistive layers. The subject of the invention is a method of producing thick cermet resistive layers for use in fixed and variable resistors. fine dispersion metal powders, metal oxides or metal alloys with a grain size of less than 40 µ, and an organic binder, and subjecting the mass thus prepared to thorough mixing to obtain a residual paste. These pastes, when applied to a ceramic, glass or glass-ceramic substrate, are dried and fired at a temperature of 550-800 ° C, and then subjected to a strictly controlled thermal treatment in order to obtain a crystalline structure. This solution has the disadvantage of When two or more metals are incorporated into the pastes as a conductive component, there is a possibility of their inhomogeneous mutual distribution in the mass. This adversely affects the uniformity of the layer, and thus the repeatability of the electrical parameters of the produced layer. The aim of the invention is to eliminate these inconveniences. This task has been achieved by using mixed crystals of the alloy type obtained as a conductive component. the way of co-concentration of two or more metals. Co-collapse consists in introducing into the reducing solution, solutions containing the salts of the lost metals or their oxides. Strong reducing agents, such as hydrazine and its derivatives or alkali metal borohydrides, are used to ensure the simultaneous precipitation of the metallic components. PL
Claims (2)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL65349B3 true PL65349B3 (en) | 1972-02-29 |
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