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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Journal of the Korean Ceramic Society
Journal Basic Information
Journal DOI :
The Korean Ceramic Society
Editor in Chief :
Volume & Issues
Volume 11, Issue 4 - Dec 1974
Volume 11, Issue 3 - Sep 1974
Volume 11, Issue 2 - Jun 1974
Volume 11, Issue 1 - Mar 1974
Selecting the target year
Study on Colour Development in Silver Containing Glass
Journal of the Korean Ceramic Society, volume 11, issue 2, 1974, Pages 3~10
For the manufacture of the silver-yellow glass, silver nitrate was used as a colorant in the base glass of
system. The latter in which the optimum condition was revealed showing beautiful yellow color had been selected among others after the preparatory studies to choose base glass. Other base glass systems considered were
. The color developed on the specimen in various conditions was examined, using spectorphotometer, in term of the changes in absorbance with wavelength in the visible range. Experimental variables were the amount of the colorant and the additives, reheating temperature and time. The additives such as ZnO, BaO,
were added to increase the coloring action. It was observed that as the amount of silver increased in the base glass the absorbance around
showed the increasing tendency, but the width of absorption curve was wider. Hence, the optimum amount of silver appeared to be 0.11~0.12%. It was found that ZnO was effective additive when present about 0.1%, while
ineffective rather retarding the coloration. Borax and
were proved effective when contained separately, but appeared ineffective when coexisted. Proper reheating temperature and time was ranged 550~
and 50~60 minutes. The higher the reheating temperature and the longer the reheating time, the absorbance was increased, while the width of absorption curve was wider. The colored glass prepared in the present experimental condition was found to have good water-resistance for the decorative purpose.
Improvement of Adsorbability of Methylene Blue on Bentonite Treated with Electrolyte Solution
Journal of the Korean Ceramic Society, volume 11, issue 2, 1974, Pages 11~16
Korean Yung-il bentonite was treated with potassium chloride, zinc chloride, calcium chloride, ferric chloride, or chromic chloride solutions respectively varying their concentration, treating temperature and treating time. The adsorbabilities of methylene blue on these pretreated bentonite were investigated. In the case of treatment with potassium chloride solution, the improvement of the adsorbahility of methylene blue on the products was observed, and in the best result the adsorbability was 1.6 times better than that on the original bentonite. With zinc chloride solution, the optimum adsorbability was a value of 1.7 times better than that on the original bentonite. With ferric chloride, chromic chloride or calcium chloride solution, slight improvement of the adsorbability was observed.
The Effect of Barium Sulfate on the Structural Transformations in Tricalcium Silicate
Journal of the Korean Ceramic Society, volume 11, issue 2, 1974, Pages 17~21
Miscibility of barium sulfate in tricalcium silicate was investigated by firing 3CaCO3·SiO2 mixture containing barium sulfate at 1530℃. Added amount of barium sulfate to the mixture was zero to 5 mole % with intervals of 1 mole %. Lattice parametres were also calculated. Results were as follow; 1) Dissolution of barium sulfate in tricalcium silicate does not alter the symmetry in room temperature, but influences it's polymorphic transition forms, temperatures and thermal effects; modification triclinic Ⅱ is stabilized in room temperature. 2) Barium sulfate dissolves about up to 2 mole % in tricalcium silicate and more than this amount, tricalcium silicate formation is inhibited. 3) Unit cell volume of tricalcium silicate is slightly decreased with dissolution of barium sulfate, mainly because of contraction in c axis.
A Study on Iron Compounds Accompanied in Korean Kaolin Minerals
Journal of the Korean Ceramic Society, volume 11, issue 2, 1974, Pages 22~30
This study was carried out to investigate the species of iron compounds in kaolin mineral and the bonding relation between the major kaolin and its subordinate iron compound existing as incidental mineral in common clay by means of chemical composition, X-ray diffraction, thermal differential and thermogravimetrie analysis for the application of clays in the field of ceramic raw material. The domestic clay are produced abounduntly in many places, but San-Cheong kaolin, Chu-An clay, and Yeong-Am clay were selected as samples in this experiment because of their frequent utilization in porcelain industry. Two kinds of samples with low and high iron content are picked up respectively from the place of production and elutriated under two micron size to determine the properties and concentration of iron compound very fine particles or colloidal substance of low crystalline grade. Therefore, hydrothermal treatment in autoclave was conducted considering the existence of low crystalline grade of iron compounds known as an amorphoue state in X-ray diffraction pattern furthermore, de-iron treatment of hydrothermal compound was done in order to identify the related iron compound before and after hydrothermal reaction and iron compound which is one of the samples was synthesized for the determination of their compounds state in more detail. The obtained results in this study are as follows: In San-Cheong kaolin, Chu-An clay and Yeong-Am clay 1) It is proved that species accompanying iron compound is
-FeOOH form. 2) Iron compound is composed of very fine particles or colloidal substance. 3) The iron substance encircles the fine parts of clay minerals under 2 micron and acts as cementizing agent.
A Study on the Wollastonite(II) -Effect of Wollastonite Additions in Mosaic Tile Body-
Journal of the Korean Ceramic Society, volume 11, issue 2, 1974, Pages 31~37
A study was performed to investigate the effect of wollastonite additions with distinguishing from β and α for wollastonite in a mosaic tile body. In this study, the efficiencies by the amounts of additive, maturing conditions and moulding pressure, etc. have been studied mainly with a measurement of thermal analysis, and physical proerties; absorption shore's hardness, linear shringkage, apparent feature and so on. As a result of study, tile body which was contained the wollastonite was reducing the maturing temperature, reducing the absorption ratio, increasing the hardness in propertion to the amounts of wollastonite above the range of 1150°∼1175℃. On the basis of this experiment, the optimum conditions for production species were obtained when wollastonite was added in the range 6%, maturing conditions was operated in the range of 1150°∼1175℃, for 3-4 hrs.
비정질 셀레니움 박막의 결정화 -결정의 형태와 그 변태속도-
Journal of the Korean Ceramic Society, volume 11, issue 2, 1974, Pages 38~49