Journal of the Ceramic Association, Japan
Online ISSN : 1884-2119
Print ISSN : 0366-9998
ISSN-L : 0366-9998
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Displaying 1-10 of 10 articles from this issue
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  • [title in Japanese]
    [in Japanese]
    1932 Volume 40 Issue 471 Pages 141-142
    Published: March 01, 1932
    Released on J-STAGE: April 30, 2010
    DOIhttps://doi.org/10.2109/jcersj1892.40.141
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    [in Japanese], [in Japanese]
    1932 Volume 40 Issue 471 Pages 143-147
    Published: March 01, 1932
    Released on J-STAGE: April 30, 2010
    DOIhttps://doi.org/10.2109/jcersj1892.40.143
    JOURNAL FREE ACCESS
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    The resistance of various bodies composed of a Kibushi-clay grog, a Kibushi-clay, and a Gairome-clay to corrosion of 0.3 PbO⋅SiO2, Na2O⋅SiO2, and B2O3⋅SiO2 glasses has been measured directly or indirectly. In the direct method, small cylindrical test pieces fired to cone 14 were heated in the raw glass mixtures, and their diameters were measured before and after the heating. In the indirect method, the pyrometric cone equivalents of the bodies mixed with an equal volume of the lead silicate or borosilicate batch were determined. The results indicate that among various factors influencing the resistance the porosity of the bodies is most important.
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  • [title in Japanese]
    [in Japanese], [in Japanese]
    1932 Volume 40 Issue 471 Pages 148-154
    Published: March 01, 1932
    Released on J-STAGE: April 30, 2010
    DOIhttps://doi.org/10.2109/jcersj1892.40.148
    JOURNAL FREE ACCESS
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    A large number of clinkers with wider varying composition in two systems, i. e. “A” SiO2-Al2O3-Fe2O3-CaO, and “B” SiO2-Al2O3-Fe2O3-CaO-MgO was prepared synthetically from pure chemicals in an electric furnace under different heating temperature and duration, and the production was carefully investigated by microscopical methods, a result of which is summarised as below:
    (I) The formation of Alit in the clinkers in system “A” is very poor compared with those in system “B”, the both systems having been prepared under identical conditions. In the latter case a very small amount, for example, 0.56% MgO has a great influence on the structure and gives a wonderful effect on the crystallization of the above-mentioned clinker mineral. This fact was ascertained on the clinkers prepared in the same manner from pure chemicals except CaCO3, instead of which natural limestone containing a small amount of MgO was used.
    (II) The color of the clinkers thus prepared in both systems was examined in powdered form with Ostwald's Universal Photometer. All clinkers in system “A” have the value of v/w=1.2-1.4, Color No. =15th-16th, and yellow or yellowish brown color, while the clinkers in system “B” containing 0.5-6.5% MgO shows v/w=0.2-0.5, Color No. =12th-14th, and greyish green or dark green color. Many samples containing 0-0.5% MgO and also three samples in which MgO was replaced by 0.1-0.4% MnO2 gave v/w=0.6-0.9, Color No. =13th-14th and greyish brown color.
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  • [title in Japanese]
    [in Japanese]
    1932 Volume 40 Issue 471 Pages 155-166
    Published: March 01, 1932
    Released on J-STAGE: April 30, 2010
    DOIhttps://doi.org/10.2109/jcersj1892.40.155
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    [in Japanese]
    1932 Volume 40 Issue 471 Pages 167-176
    Published: March 01, 1932
    Released on J-STAGE: April 30, 2010
    DOIhttps://doi.org/10.2109/jcersj1892.40.167
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    [in Japanese]
    1932 Volume 40 Issue 471 Pages 177-180
    Published: March 01, 1932
    Released on J-STAGE: April 30, 2010
    DOIhttps://doi.org/10.2109/jcersj1892.40.177
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    1932 Volume 40 Issue 471 Pages 181-198
    Published: March 01, 1932
    Released on J-STAGE: April 30, 2010
    DOIhttps://doi.org/10.2109/jcersj1892.40.181
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    1932 Volume 40 Issue 471 Pages 199-200
    Published: March 01, 1932
    Released on J-STAGE: April 30, 2010
    DOIhttps://doi.org/10.2109/jcersj1892.40.199
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    1932 Volume 40 Issue 471 Pages 200-203
    Published: March 01, 1932
    Released on J-STAGE: April 30, 2010
    DOIhttps://doi.org/10.2109/jcersj1892.40.200
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    1932 Volume 40 Issue 471 Pages 205
    Published: March 01, 1932
    Released on J-STAGE: April 30, 2010
    DOIhttps://doi.org/10.2109/jcersj1892.40.205
    JOURNAL FREE ACCESS
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