摘要:

AbstractSmall slag cylinders placed on top of different refractory brick were heated at 1300° and 1400°C. Depth and width of reaction and diffusion zones were measured, and thin sections through the penetrations mere studie

ISSN:0002-7820    

DOI:10.1111/j.1151-2916.1945.tb14514.x

出版商:Blackwell Publishing Ltd    

年代:1945

数据来源: WILEY

摘要:

AbstractThe effect of composition on the ability of glazed dishes to withstand thermal‐shock treatments ordinarily received in cooking was studied. Bodies which gave best results contained approximately 10% of New York talc and also a small amount of calcined clay substituted for potters' flint. Bodies which had sufficiently high thermal expansion to throw the glaze into moderate or strong compression gave the best results. A terra sigillata finish applied to talc‐free bodies was found to withstand autoclave treatment without crazing, and ware so made stood up very well in service te

ISSN:0002-7820    

DOI:10.1111/j.1151-2916.1945.tb14515.x

出版商:Blackwell Publishing Ltd    

年代:1945

数据来源: WILEY

摘要:

AbstractCompositions and characteristics of various types of enamels using the most successful mill additions in Parts I and II are reported. The enamels used in this paper are (1) clear enamels (regular) for ground or colored coats, (2) clear enamels (acid resisting) for colored coats, (3) high lead clear enamels maturing below 1000°F., (4) raw or partially fritted enamels for ground or colored coats, and (5) white antimony enamels for direct application to the metal base. Reported for the first time are some white enamels containing molybdenum in the frit, which adhere to sheet steel without additions of molybdenum compounds to the mill

ISSN:0002-7820    

DOI:10.1111/j.1151-2916.1945.tb14516.x

出版商:Blackwell Publishing Ltd    

年代:1945

数据来源: WILEY

摘要:

AbstractCompositions and characteristics of white enamels containing molybdenum in the frit are reported. The white enamels studied are the following types: (1) regular white ground coats, (2) acid‐resisting white ground coats, (3) regular white finish coats for direct application to metal base, (4) acid‐resisting white finish coats for direct application to the metal, and (5) acid‐resisting white cover

ISSN:0002-7820    

DOI:10.1111/j.1151-2916.1945.tb14517.x

出版商:Blackwell Publishing Ltd    

年代:1945

数据来源: WILEY

摘要:

AbstractComputed values are given for the thickness of the water film adsorbed on the surfaces of the various clay minerals when clays composed of such minerals develop specific plastic characteristics. Based on such values, the following concept of clay‐water relationships is presented: The dominant factor determining the plastic properties of clays is the rigidity of the water held on the surfaces of the clay minerals, and the point of beginning of the transition of completely rigid water to liquid water is marked by great changes in such properties. Each type of clay mineral seems to have a characteristic ability to stabilize water, and the exchangeable ions also exert an influence. The reaction between water and kaolinite or halloysite may require considerable time so that there is frequently a time lag after mixing clays composed of such minerals before the plastic properties are fully developed.Application of the foregoing concept in the fields of geology, ceramics, and soil mechanics are suggeste

ISSN:0002-7820    

DOI:10.1111/j.1151-2916.1945.tb14518.x

出版商:Blackwell Publishing Ltd    

年代:1945

数据来源: WILEY