同位素分析仪-甲醛分析仪-北京世纪朝阳科技发展有限公司

当前位置:首页 > 公司简介

Reducing the crystallite and particle size of SrFe12O19 with PVA by high energy ball milling

2019-09-24 15:57:58

1149

作者: F.N. Tenorio Gonzaleza, I.R. Barajas Rosalesa, P. Vera Sernaa, F. Sánchez de Jesusb, A.M. Bolarin Mirób, A. Garrido Hernándezc, Martin Kusýd

aDivisión de ingenierías Universidad Politécnica de Tecamac, Prolongación 5 de Mayo 10, Centro, C.P.55740, Estado de México, Mexico

bÁrea Académica de Ciencias de la Tierra y Materiales, Universidad Autónoma del Estado de Hidalgo, 42184, Mineral de la Reforma, Hidalgo, Mexico

cUniversidad Tecnológica de Tecámac, 55740, Tecámac, Estado de México, Mexico

dSlovak University of Technology in Bratislava, Faculty of Materials Science and Technology in Trnava, Jána Bottu No. 2781/25, 917 24, Trnava, Slovak Republic

 

摘要:The effect of polyvinyl alcohol, PVA, on crystallite and particle sizes of strontium hexaferrite synthesized by high-energy ball milling followed by an annealing at 950 °C is presented. Results of X-ray diffraction of (100-x)SrFe12O19@xPVA (0  x  100) composites shown the presence of strontium hexaferrite in all samples, while the crystal structure of PVA is degraded due to the mechanical energy supplied from the milling process. However, the Infrared study (FTIR) indicated that the polymeric chain kept intact. Magnetic behavior, from vibrating sample magnetometry tests, shown a waist wasp type hysteresis loop, for all the composites SrFe12O19@PVA, confirming that both materials do not generate bonds, and there is only a mixture of materials. Finally, Rietveld refinement, SEM analysis, and particle size measurement allowed demonstrating that PVA reduces the crystallite and particle sizes at nanometers scale of strontium hexaferrite synthesized.


分享到微信朋友圈

分享到其他

010-51627740

同位素分析仪-甲醛分析仪-北京世纪朝阳科技发展有限公司 同位素分析仪-甲醛分析仪-北京世纪朝阳科技发展有限公司
同位素分析仪-甲醛分析仪-北京世纪朝阳科技发展有限公司