高级检索
    覃月宁, 王芳, 杜大明, 宋杰光. 原料配比对石英质孔梯度陶瓷性能的影响[J]. 机械工程材料, 2018, 42(4): 82-86. DOI: 10.11973/jxgccl201804018
    引用本文: 覃月宁, 王芳, 杜大明, 宋杰光. 原料配比对石英质孔梯度陶瓷性能的影响[J]. 机械工程材料, 2018, 42(4): 82-86. DOI: 10.11973/jxgccl201804018
    QIN Yuening, WANG Fang, DU Daming, SONG Jieguang. Effect of Raw Materials Ratio on Properties of Pore Gradient Quartz Ceramics[J]. Materials and Mechanical Engineering, 2018, 42(4): 82-86. DOI: 10.11973/jxgccl201804018
    Citation: QIN Yuening, WANG Fang, DU Daming, SONG Jieguang. Effect of Raw Materials Ratio on Properties of Pore Gradient Quartz Ceramics[J]. Materials and Mechanical Engineering, 2018, 42(4): 82-86. DOI: 10.11973/jxgccl201804018

    原料配比对石英质孔梯度陶瓷性能的影响

    Effect of Raw Materials Ratio on Properties of Pore Gradient Quartz Ceramics

    • 摘要: 以低品位石英砂为主要原料,通过制浆、成型、干燥和烧结等工序制备得到不同原料配比的石英质孔梯度陶瓷,研究了石英砂含量、水料质量比和发泡剂含量对该陶瓷气孔率、抗压强度和显微结构的影响,得到了较佳的原料配比。结果表明:随着石英砂含量的增加,试样的气孔率增大,宏观上呈现出一定的孔梯度结构;随着水料质量比的增加,试样的气孔率先增后降,气孔变得均匀,裂纹减少;随着发泡剂含量的增加,气孔率增大;抗压强度与气孔率呈现相反的变化规律;较佳原料配比为石英砂质量分数为70%,水料质量比为1.0,发泡剂质量分数为0.8%,制备得到石英质孔梯度陶瓷的抗压强度为6.18 MPa,气孔率为63.5%,孔形较好。

       

      Abstract: The low grade quartz sand was used as the main raw material, and then the pore gradient quartz ceramics with different ratios of raw materials were prepared by the process of pulping, forming, drying and sintering. The effects of quartz sand content, mass ratio of water to material and blowing agent content on the porosity, compressive strength and microstructure of the ceramics were studied, and the optimal raw materials ratio was obtained. The results show that with the increase of the quartz sand content, the porosity of the sample increased and the sample showed a macroscopic pore gradient structure. With the water to material mass ratio increasing, the porosity of the sample increased and then decreased, the pores became homogenous and the cracks decreased. With the incerase of the blowing agent content, the porosity increased. The compressive strength had opposite changes comparing with the poeposity. The relatively optimal raw materials ratio was listed as follows:quartz sand mass fraction of 70%, water to material mass ratio of 1.0 and blowing agent mass fraction of 0.8%. The pore gradient quartz ceramics with compressive strength of 6.18 MPa, porosity of 63.5% and better hole shape were obtained.

       

    /

    返回文章
    返回