Pub Date : 1952-01-01DOI: 10.2109/JCERSJ1950.60.670_134
Toshiyoshi Yamauchi, R. Kondo, T. Shimohira
{"title":"On the Thermal Change of Sericite","authors":"Toshiyoshi Yamauchi, R. Kondo, T. Shimohira","doi":"10.2109/JCERSJ1950.60.670_134","DOIUrl":"https://doi.org/10.2109/JCERSJ1950.60.670_134","url":null,"abstract":"","PeriodicalId":17274,"journal":{"name":"Journal of the Ceramic Association, Japan","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1952-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81702803","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1951-01-01DOI: 10.2109/JCERSJ1950.59.580
Y. Ikeda
On the glass sealing of vacuum tubes, the intermediate glass of law melting point can be used effectively.The results of the work are as foffows.1) The fact is confirmed theoretically that the sealed tubes are safe from crack and leakage, when the relativities of expansion coefficient between the bulb glass, stem glass and intermediate glass ars suitably selected.2) A few sealing methodes are tried practically.
{"title":"Studies on Sealing Method of Vacuum Tubes with law melting point Glass","authors":"Y. Ikeda","doi":"10.2109/JCERSJ1950.59.580","DOIUrl":"https://doi.org/10.2109/JCERSJ1950.59.580","url":null,"abstract":"On the glass sealing of vacuum tubes, the intermediate glass of law melting point can be used effectively.The results of the work are as foffows.1) The fact is confirmed theoretically that the sealed tubes are safe from crack and leakage, when the relativities of expansion coefficient between the bulb glass, stem glass and intermediate glass ars suitably selected.2) A few sealing methodes are tried practically.","PeriodicalId":17274,"journal":{"name":"Journal of the Ceramic Association, Japan","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1951-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89617360","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1951-01-01DOI: 10.2109/JCERSJ1950.59.468
J. Yamamoto, Tooru Kishii
For Borosilicate glasses B2O3 anormalies are often seen. The author made an experiment of transformation point, softeming point and chemical durability in the ternary system of Na2O-B2O3-SiO2 and expressed them in ternary diagrams.As the result, it was found that in the transformation points and chemical durabilities B2O3 anormaly appeared at the same position, but no anormaly was seen in softening points.Also he pointed out that in the composition of borosilicate glasses the way of utilization of anormaly differ from each other and hence the composition should be changed naturally in the case of aiming the sealing glasses such as electric bulb glasses or chemical resisting glasses.
{"title":"A Study on the Physical and Chemical Properties of Borosilicate Glasses","authors":"J. Yamamoto, Tooru Kishii","doi":"10.2109/JCERSJ1950.59.468","DOIUrl":"https://doi.org/10.2109/JCERSJ1950.59.468","url":null,"abstract":"For Borosilicate glasses B2O3 anormalies are often seen. The author made an experiment of transformation point, softeming point and chemical durability in the ternary system of Na2O-B2O3-SiO2 and expressed them in ternary diagrams.As the result, it was found that in the transformation points and chemical durabilities B2O3 anormaly appeared at the same position, but no anormaly was seen in softening points.Also he pointed out that in the composition of borosilicate glasses the way of utilization of anormaly differ from each other and hence the composition should be changed naturally in the case of aiming the sealing glasses such as electric bulb glasses or chemical resisting glasses.","PeriodicalId":17274,"journal":{"name":"Journal of the Ceramic Association, Japan","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1951-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84088612","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1950-01-01DOI: 10.2109/JCERSJ1950.58.220
T. Noda, Shuzo Kato
Minerals of the dnsity greater than 2.9 were separated from Kampaku kaolin, the white kaolin, from Kampaku Mine, Haguro-mura, Kawachi-gun, Tochigi Prefecture, Japan, by means of heavy liquid. The main part of the separated minerals was composed of light brown particles. The chemical analysis of the separated minerals have shown that about 78% was titanium oxide. The titanium oxide mineral was found to be anatase, admixed with a minute amounts of rutile by X-ray method.
{"title":"TITANUM MINERAL IN KAMPAKU KAOLIN","authors":"T. Noda, Shuzo Kato","doi":"10.2109/JCERSJ1950.58.220","DOIUrl":"https://doi.org/10.2109/JCERSJ1950.58.220","url":null,"abstract":"Minerals of the dnsity greater than 2.9 were separated from Kampaku kaolin, the white kaolin, from Kampaku Mine, Haguro-mura, Kawachi-gun, Tochigi Prefecture, Japan, by means of heavy liquid. The main part of the separated minerals was composed of light brown particles. The chemical analysis of the separated minerals have shown that about 78% was titanium oxide. The titanium oxide mineral was found to be anatase, admixed with a minute amounts of rutile by X-ray method.","PeriodicalId":17274,"journal":{"name":"Journal of the Ceramic Association, Japan","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1950-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74031972","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1949-06-01DOI: 10.2109/JCERSJ1947.57.47
M. Fjii
{"title":"FUNDAMENTAL STUDIES ON THE REFRACTORIES OF SILICA-ALUMINA SYSTEM","authors":"M. Fjii","doi":"10.2109/JCERSJ1947.57.47","DOIUrl":"https://doi.org/10.2109/JCERSJ1947.57.47","url":null,"abstract":"","PeriodicalId":17274,"journal":{"name":"Journal of the Ceramic Association, Japan","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1949-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78996238","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
New method of measuring the reaction heat and Formation of mullite.Applying the principle of the thermal conduction, the writer devised an apparatus of measuring the reaction heat by which the reaction velocity between Al2O3 and SiO2 is studied. Mullite is formed from the mixture of Al2O3 and SiO2 powder at above 750°C and this activation energy is about 40 Kcal/mol.
{"title":"熱分析による固相反應速度の研究 (第4報) アルミナとシリカの反應","authors":"清 瀬川","doi":"10.2109/JCERSJ1947.57.1","DOIUrl":"https://doi.org/10.2109/JCERSJ1947.57.1","url":null,"abstract":"New method of measuring the reaction heat and Formation of mullite.Applying the principle of the thermal conduction, the writer devised an apparatus of measuring the reaction heat by which the reaction velocity between Al2O3 and SiO2 is studied. Mullite is formed from the mixture of Al2O3 and SiO2 powder at above 750°C and this activation energy is about 40 Kcal/mol.","PeriodicalId":17274,"journal":{"name":"Journal of the Ceramic Association, Japan","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1949-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84365145","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The production efficiency of a small tank furnace from the results of execution of electoro-melting of glass in postwar Japan","authors":"Hachiro Shimada","doi":"10.2109/JCERSJ1947.55.100","DOIUrl":"https://doi.org/10.2109/JCERSJ1947.55.100","url":null,"abstract":"實現せる小型電氣硝子熔融爐の一に就き最近行つた生産效率に關する簡單なる調査結果を擧げ容量頗る小なるも近代化せる第二次世界戰爭直前の大型槽型熔融爐に比較し約2倍の高效率を有する事を報告し得たり。本爐は本邦に於て未だ緒に就きし又は工業試驗程度にて北米テウェーデン等に於けるものに比較し規模小なり, 其の完成は今後の發展に俟つべきである, 現在の所電極材質による着色は實用上僅小なるも, 更に一歩進んで除却さる程度にまで改善さるゝに至らんとしてゐる電氣事情の原因のため或る時期に於ては氣泡の點に就き改善の餘地あり, 其の他爐構造電極構造電氣様式熔融硝子組成に關し綜合的研究を必要とする課題多きも研究の進捗に伴ひ, 製品の向上並に製法自體の改善等期待さるゝ所多し, 其の一二に就て又記述する機會あらん, 日本の現状を視るに固體液體燃料事情未だ好轉せず電力事情すら時に安定を缺くの感あるも本熔融法は其れ自體に科學的研究價値を有するもので應用範圍頗る廣し, 一國の經濟状態は科學工學技術の研究及び其の發達を強力に支配するも後者又前者の潜勢力の根源を培ひ其の死命を制す, 本法の健全な不斷の發展を念ずるや切なり, 敗戰後の一年を顧みて昭和21年秋","PeriodicalId":17274,"journal":{"name":"Journal of the Ceramic Association, Japan","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1947-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81750093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1943-05-01DOI: 10.2109/JCERSJ1892.51.272
Y. Fukushima
{"title":"最近の國産セメントの成分に就て (1) 遊離石灰の定量と其含有量","authors":"Y. Fukushima","doi":"10.2109/JCERSJ1892.51.272","DOIUrl":"https://doi.org/10.2109/JCERSJ1892.51.272","url":null,"abstract":"","PeriodicalId":17274,"journal":{"name":"Journal of the Ceramic Association, Japan","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1943-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81802433","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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