Microwave dielectric characterisation of 3D-printed BaTiO3/ABS polymer composites

被引：168

作者：

Castles, F. ^{[1
]}

Isakov, D. ^{[1
]}

Lui, A. ^{[1
]}

Lei, Q. ^{[1
]}

Dancer, C. E. J. ^{[1
,2
]}

Wang, Y. ^{[1
]}

Janurudin, J. M. ^{[1
]}

Speller, S. C. ^{[1
]}

Grovenor, C. R. M. ^{[1
]}

Grant, P. S. ^{[1
]}

机构：

[1] Univ Oxford, Dept Mat, Pk Rd, Oxford OX1 3PH, England

[2] Univ Warwick, IINM, Warwick Mfg Grp, Coventry CV4 7AL, W Midlands, England

来源：

SCIENTIFIC REPORTS | 2016年 / 6卷

基金：

英国工程与自然科学研究理事会;

关键词：

COMPLEX PERMITTIVITY MEASUREMENTS; FABRICATION; STEREOLITHOGRAPHY; COMPONENTS;

D O I：

10.1038/srep22714

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

3D printing is used extensively in product prototyping and continues to emerge as a viable option for the direct manufacture of final parts. It is known that dielectric materials with relatively high real permittivity-which are required in important technology sectors such as electronics and communications-may be 3D printed using a variety of techniques. Among these, the fused deposition of polymer composites is particularly straightforward but the range of dielectric permittivities available through commercial feedstock materials is limited. Here we report on the fabrication of a series of composites composed of various loadings of BaTiO3 microparticles in the polymer acrylonitrile butadiene styrene (ABS), which may be used with a commercial desktop 3D printer to produce printed parts containing user-defined regions with high permittivity. The microwave dielectric properties of printed parts with BaTiO3 loadings up to 70 wt% were characterised using a 15 GHz split post dielectric resonator and had real relative permittivities in the range 2.6-8.7 and loss tangents in the range 0.005-0.027. Permittivities were reproducible over the entire process, and matched those of bulk unprinted materials, to within similar to 1%, suggesting that the technique may be employed as a viable manufacturing process for dielectric composites.

引用

页数：8