| KERALA BALL CLAYS,
PART I-PHYSICAL PROPERTIES OF THE RAW CLAYS |
MIR NOMAN KHAN, B. RAO, B. RAMA RAO A};D D. S. DATAR*
Pages : 77-86
DOI : 10.1080/0371750X.1960.10855394 |
| Abstract |
| Four ball clays from Kerala were studied for
their physical properties such 4s particle size
distribution, plasticity, drying and firing shrinkage,
green strength, colour and porosity at different
temperatures, and P.C.E. value. The mineralogical
composition and impurities were studied
by the X-ray and D.T.A. methods. One clay
fires to a comparatively whiter colour than the
imported ball clay. It has been found to be
satisfactory for the manufacture of electrical
porcelain. These ball clays can be used in the
ceramic industry either alone or after blending
so as to get the desired property, thus saving
valuable foreign exchange. |
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