| Effect of Amount and Size of Quartz on Mechanical
and Dielectric Properties of Electrical Porcelain |
Lila Boussouf,1 Fouzia Zehani,1,* Youcef Khenioui2 and Noureddine Boutaou
Pages : 132-137
DOI : 10.1080/0371750X.2018.1500148 |
| Abstract |
| The present work reports a systematic study on the influence of particle size and
amount of quartz on mechanical and dielectric properties of electrical porcelain.
The samples of electrical porcelain were elaborated using quartz, kaolin, clay,
feldspar and zircon. The quartz was milled at 20, 30 and 45 h. Phase and
microstructure evolution of the samples synthesized were characterized by X-ray
diffraction, differential thermal analysis and scanning electron microscopy. The
investigation revealed the formation of mullite, unsolved quartz and creation of microcracks
and pores. Mechanical and dielectric strength measurements were performed
on the samples sintered at 900o, 1000o, 1100o and 1275oC. The mechanical strength
increased from 578.97 to 842.49 kg.cm–2 and the dielectric strength increased from
26.34 to 28.28, 28.77 to 32.24 and 30.32 to 36.27 kV.mm–1 for different milled times.
The properties of electrical porcelain were attributed to the particle size of quartz.
[Keywords: Electrical porcelain, Quartz, Mullite, Mechanical strength, Dielectric
strength] |
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