EMULATION OF A WHITEBODY FROM SELECTED CERAMIC RAW MATERIALS FROM SOKOTO AND KWARA STATES SUITABLE FOR CASTING TABLEWARES
EMULATION OF A WHITEBODY FROM SELECTED CERAMIC RAW MATERIALS FROM SOKOTO AND KWARA STATES SUITABLE FOR CASTING TABLEWARES
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Date
1988
Authors
ZAURO, TUKUR DIKKO MUHAMMAD
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Abstract
Zauro, Tukur Dikko Muhammad, Formulation of a
Whitebody from selected Ceramic raw materials from
Sokoto and Kwara States suitable for casting
Tableware, M.A. Thesis in Industrial Design,
Ahmadu Bello University, Zaria, 1988, 12 Tables,
4 Figures, 11 Plates and 32 references.
The problem with which this study is concerned
is to identify suitable materials from Sokoto and
Kwara States for the formulation of a whitebody.
The purposes of the study are : -
1 . To identify through experiments the
selected ceramic raw materials from
Sokoto and Kwara States suitable for
casting tableware.
2. To find a good workable body that
can be fired to approximately 1 280'c to
produce tableware.
3. To make a contribution to knowledge
in this area especially to the scanty
literature on my topic.
The information supplied by Geologists and local
Potters helped the researcher to identify and procure
raw materials used in this study. The materials are
Rakwamni Kaolin, Wurno secondary clay, Kalambaina
limestone, Mayanci quartz from Sokoto State and
feldspar from Okene in Kwara State.
The chemical analysis could not be performed due
to lack of equipment, but physical property tests in
shrinkage, plasticity, porosity and colour for plastic
materials and for the non-plastic materials colour,
cleavage and hardness were conducted. After the
physical property test some materials were rejected
and atriaxial blend method was adapted as the basis
for body formulation.
Seven compositions that produced likely results
were selected for further tests. Slip casting technique
was used as a shaping method to produce samples.
The study, based on the result obtained states
the following findings:-
1 • Rakwamni clay can be used as a fine
kaolin, Wurno as a ball clay, Mayanci
quartz as a source of s i l i c a and
Kalambaina limestone for whiting all
from Sokoto State. Okene feldspar
from Kwara State can also be used as
a potash feldspar.
2. The amount of water, 250 gm and 4 gm
of deflocculants in varied proportions
of 2:2 and 1 :3 of sodium carbonate and
sodium silicate to every 500 gm of
solid ingredients produced a good
workable slips. And the addition of
a secondary clay also improved the
plasticity in the slips.
3. There was a good balance of the body
and the glaze as a result the 1280°c
temperature at glost firing was found
to be adequate.
4. Ball milling was discovered to be the
most effective way to blend ceramic
materials.
5. If the casting slip is left undisturbed
for days, the casting will be difficult.
It will need blunging before casting is
done.
6. Gas firing yielded variations of white
effect probably as are sult of the
reduction atmosphere in the kiln during
firing.
Description
A TED TO THE POSTGRADUATE
AHMADU BELLO UNIVERSITY, ZARIA IN PARTIAL FULFILMENT
THE REQUIREMENTS FOR THE DEGREE OF MASTER.
OF ARTS IN INDUSTRIAL DESIGN
DEPARTMENT OF INDUSTRIAL DESIGN
FACULTY 0F ENVIRONMENTAL DESIGN
AHMADU BELLO UNIVERSITY
ZARIA
1988
Keywords
EMULATION, CERAMIC RAW,, KWARA STATES,, CASTING TABLEWARES