Polymeric synthesis and conventional versus laser sintering of CaCu3Ti4O12 electroceramics: (micro)structures, phase development and dielectric properties
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- 作者：L.M. Jesusa ; lilianmfisica@gmail.com" class="auth_mail" title="E-mail the corresponding author ; J.C.A. Santosb ; D.V. Sampaiob ; L.B. Barbosab ; R.S. Silvab ; J.-C. M'Pekoa
- 关键词：Ceramics ; Laser processing ; Microstructure ; X-ray diffraction ; Scanning electron microscopy ; Dielectric response
- 刊名：Journal of Alloys and Compounds
- 出版年：2016
- 出版时间：5 January 2016
- 年：2016
- 卷：654
- 期：Complete
- 页码：482-490
- 全文大小：2352 K
文摘
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Laser versus conventional sintering of CaCu3Ti4O12 (CCTO) was here investigated.
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The former allows synthesizing not only dense but also fine-grained microstructures.
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Incidence of CuO, Cu2O and TiO2 traces is found toward higher sintering conditions.
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Unlike conventional sintering, laser processing inhibits Cu+ re-oxidation to Cu2+.
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Laser sintering is efficient in producing high-permittivity and low-loss CCTO bodies.