杨网,陆小龙,王永光,赵栋,管怀俊.氮化硼纳米片对氧化铝胶黏陶瓷涂层摩擦行为的影响[J].表面技术,2021,50(8):311-317.
YANG Wang,LU Xiao-long,WANG Yong-guang,ZHAO Dong,GUAN Huai-jun.Effects of Boron Nitride Nanoplatelets on the Tribological Properties of Alumina Chemically Bonded Phosphate Ceramic Coatings[J].Surface Technology,2021,50(8):311-317 |
| 氮化硼纳米片对氧化铝胶黏陶瓷涂层摩擦行为的影响 |
| Effects of Boron Nitride Nanoplatelets on the Tribological Properties of Alumina Chemically Bonded Phosphate Ceramic Coatings |
| 投稿时间：2020-11-03 修订日期：2020-12-10 |
| DOI：10.16490/j.cnki.issn.1001-3660.2021.08.029 |
| 中文关键词: 氮化硼纳米片 陶瓷涂层 料浆法 孔隙率 摩擦学性能 |
| 英文关键词:BNNP ceramic coating slurry method porosity tribological properties |
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| 中文摘要: |
| 目的 通过在氧化铝胶黏陶瓷涂层中添加氮化硼纳米片(BNNP)，从而改善涂层的摩擦学性能。方法 利用均质机将混合粉末均匀分散，并采用料浆法在304不锈钢表面制得不同含量的BNNP增强氧化铝胶黏陶瓷涂层(BRPCC)。通过扫描电子显微镜(SEM)、X射线衍射仪(XRD)和球盘式摩擦磨损试验机，分析了不同含量的BNNP增强氧化铝胶黏陶瓷涂层的显微组织、物相和摩擦学性能。结果 涂层的主要物相为氧化铝、磷酸铝、磷酸锌和氮化硼。BNNP未参与涂层固化反应，但作为黏结相的“成核剂”填补了孔隙或覆盖了孔洞。随着BNNP含量的增加，涂层表面质量得到有效改善，添加1%BNNP的涂层表面孔隙率最低，为4.33%，相比不添加BNNP的涂层，孔隙率下降了55.27%。随着BNNP含量的增加，涂层的摩擦因数和磨损率随之降低，当BNNP添加量为1%时最低，摩擦因数从0.372降到0.242，磨损率从1.512×10–3 mm3/(N×m)降到0.494×10–3 mm3/(N×m)。胶黏陶瓷涂层的磨损机理主要为磨粒磨损和粘着磨损。结论 氮化硼纳米片的添加可以有效地提升氧化铝胶黏陶瓷涂层的耐磨减摩性能。 |
| 英文摘要: |
| The tribological properties of the alumina chemically bonded phosphate ceramic coatings were improved by adding boron nitride nanoplatelets (BNNP). In this paper, the powder with BNNP was uniformly dispersed by the homogenizer, and then the coatings with different contents of BNNP were fabricated on 304 stainless steel. The phase compositions, morphology and tribological properties of coatings with different content of BNNP were analyzed by X-ray diffraction (XRD), scanning electron microscope (SEM) and ball-and-disc tribometer. Results show that the main phases of the coatings are Al2O3, AlPO4, Zn3(PO4)2 and BNNP, which indicates that the added BNNP does not participate in the coating curing reaction. The added BNNP, as the nucleating agent of the bonding phase, could fill or cover the pores. With the increasing content of BNNP, the surface quality of the coating is improved. The surface porosity of the coating with 1wt% BNNP is the lowest (4.33%), 55.27% lower than the coating without BNNP. As the content of BNNP increases, the friction coefficient and wear rate of the coatings decrease. When the content of BNNP is 1wt%, the friction coefficient reduces from 0.372 to 0.242, and the wear rate decreases from 1.512×10–3 mm3/(N×m) to 0.494×10–3 mm3/(N×m). The main wear mechanisms of coatings are abrasive wear and adhesive wear. These results conclude that the addition of BNNP can improve the friction and wear properties of the alumina chemically bonded phosphate ceramic coatings. |
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