掺锶羟基磷灰石陶瓷的制备及其铁电性能

IF 0.6 4区材料科学 Q4 MATERIALS SCIENCE, CERAMICS

Ceramics-silikaty Pub Date : 2023-04-05 DOI:10.13168/cs.2023.0016

Hongquan Zhang

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引用次数: 0

摘要

以5%的生物活性磷酸盐玻璃为添加剂，在700℃下制备了具有良好铁电性能的掺锶羟基磷灰石陶瓷。采用XRD、FTIR、SEM和铁电仪对制备的陶瓷进行了晶体结构、相组成、微观结构和铁电性能分析。结果表明，用Sr - 2+取代Ca - 2+会导致HA晶格参数的增加和结晶度的降低。此外，Sr 2+掺杂引起的晶格畸变和电偶极矩的增加提高了Sr- ha陶瓷的铁电性能。增加样品的密度可以提高其铁电性能。剩余极化强度从0.0156 μC∙cm-2增加到0.0728 μC∙cm-2，最大极化强度从0.1210 μC∙cm-2增加到0.1628 μC∙cm-2。

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PREPARATION AND FERROELECTRIC PROPERTIES OF STRONTIUM-DOPED HYDROXYAPATITE CERAMICS

Strontium-doped hydroxyapatite ceramics with good ferroelectric properties were prepared using 5 % bioactive phosphate glass as an additive at 700 °C in this paper. XRD, FTIR, SEM analyses and a ferroelectric tester were used to analyse the crystal structure, phase composition, microstructure and ferroelectric properties of the prepared ceramics. The results revealed that substitution of Ca 2+ by Sr 2+ in the HA lattice would lead to an increase in its lattice parameters and a decrease in crystallinity. Moreover, the lattice distortion and the increase in the electric dipole moment caused by the Sr 2+ doping enhanced the ferroelectric properties of the Sr-HA ceramics. Increasing the density of the samples could enhance their ferroelectric properties. The remnant polarisation intensity increased from 0.0156 μC∙cm-2 to 0.0728 μC∙cm-2, the maximum polarisation intensity increased from 0.1210 μC∙cm -2 to 0.1628 μC∙cm -2 .

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来源期刊

Ceramics-silikaty 工程技术-材料科学：硅酸盐

CiteScore

1.40

自引率

11.10%

发文量

审稿时长

5.5 months

期刊介绍： The journal Ceramics-Silikáty accepts papers concerned with the following ranges of material science: Chemistry and physics of ceramics and glasses Theoretical principles of their engineering including computing methods Advanced technologies in the production of starting materials, glasses and ceramics Properties and applications of modern materials Special analytical procedures Engineering ceramic including composites Glass and ceramics for electronics and optoelectronics High temperature superconducting materials Materials based on cement or other inorganic binders Materials for biological application Advanced inorganic glasses with special properties Fibrous materials Coatings and films based on inorganic non-metallic materials.