Full
HE Dingkun (1998-), male, Master candidate. E-mail: 2440888281@qq.com
Outline
A porcelain was prepared with Kaolin clay, potassium feldspar and quartz as raw materials and zirconium silicate as a reinforcing material. The effects of zirconium silicate content, firing temperature and holding time on the properties of porcelain were investigated, and the strengthening mechanism of zirconium silicate particle dispersion on the porcelain was analyzed. The results show that the optimum porcelain reinforcement can be obtained at zirconium silicate content of 6%, firing temperature of 1 300 ℃ and holding time of 30 min. The bending strength increases from (58±6) MPa to (106±11) MPa, and the growth rate is 83%. The radial compressive stress and tangential tensile stress are generated in the matrix during the cooling process due to the difference of thermal expansion coefficient between zirconium silicate particles and matrix, resulting in the increased porcelain strength.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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