JPS6430201A - Manufacture of lead-containing ceramic material - Google Patents
Manufacture of lead-containing ceramic materialInfo
- Publication number
- JPS6430201A JPS6430201A JP18620987A JP18620987A JPS6430201A JP S6430201 A JPS6430201 A JP S6430201A JP 18620987 A JP18620987 A JP 18620987A JP 18620987 A JP18620987 A JP 18620987A JP S6430201 A JPS6430201 A JP S6430201A
- Authority
- JP
- Japan
- Prior art keywords
- calcinated
- powder
- pbo
- dried
- calcinated powder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/02—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient
- H01C7/022—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient mainly consisting of non-metallic substances
- H01C7/023—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient mainly consisting of non-metallic substances containing oxides or oxidic compounds, e.g. ferrites
- H01C7/025—Perovskites, e.g. titanates
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Ceramic Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Thermistors And Varistors (AREA)
Abstract
PURPOSE:To suppress the evaporation of lead oxide in a calcination process and to obtain a positive characteristic thermistor sintered body which is free from compositional deviation and stable, by a method wherein the calcinated powder, formed by calcinating PbO-TiO2 mixed powder in a prescribed temperature range, is used. CONSTITUTION:PbO and TiO2 are weighed so as to have the molar ratio of 1:1 as the first component, neobymium oxide of 0.1-0.4wt.% is added thereto, and after a wet mixing process has been conducted, the mixture is dried up, calcinated at 750-950 deg.C, and calcinated powder 1 is obtained. Then, as the second composition, MnO2 and SiO2 are added to the calcinated powder 1 as the element to be used to improve various characteristics, by weighing it to obtain a specific compositional ratio, and after wet-mixing the above-mentioned powder by a ball mill and dried up in the same manner as the calcinated powder 1, it is calcinated at 1000-1200 deg.C, and the calcinated powder 2 is obtained. Then, the calcinated powder 1 and 2 are weighed so as to obtain the specific compositional ratio, and after it has been pulverized and mixed, it is dried up. As a result, the compositional deviation caused by the evaporation of PbO can be prevented, and the sintered body of the homogenous ceramic semiconductor can be obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18620987A JPS6430201A (en) | 1987-07-24 | 1987-07-24 | Manufacture of lead-containing ceramic material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18620987A JPS6430201A (en) | 1987-07-24 | 1987-07-24 | Manufacture of lead-containing ceramic material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6430201A true JPS6430201A (en) | 1989-02-01 |
Family
ID=16184279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18620987A Pending JPS6430201A (en) | 1987-07-24 | 1987-07-24 | Manufacture of lead-containing ceramic material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6430201A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107689277A (en) * | 2016-08-03 | 2018-02-13 | 东莞市仙桥电子科技有限公司 | A kind of sintering process of thermistor |
-
1987
- 1987-07-24 JP JP18620987A patent/JPS6430201A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107689277A (en) * | 2016-08-03 | 2018-02-13 | 东莞市仙桥电子科技有限公司 | A kind of sintering process of thermistor |
| CN107689277B (en) * | 2016-08-03 | 2019-02-22 | 东莞市仙桥电子科技有限公司 | A kind of sintering process of thermistor |
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