Effects of sintering temperature on electrical properties of sheep enamel hydroxyapatite

3rd International Conference on Smart Material Research

Dumludag, F.^1 ; Gunduz, O.^2,3 ; Kilic, O.^3,4 ; Kilic, B.^5 ; Ekren, N.^3,6 ; Kalkandelen, C.^3,7 ; Oktar, F.N.^3,8

Marmara University, Faculty of Arts and Sciences, Department of Physics, Kadiko, Istanbul

34722, Turkey^1

Marmara University, Faculty of Technology, Department of Metallurgical and Materials Eng., Kadikoy, Istanbul

34722, Turkey^2

Marmara University, Advanced Nanomaterials Research Lab., Kadikoy, Istanbul

34722, Turkey^3

Marmara University, Faculty of Engineering, Department of Electrical and Electronics Eng., Kadikoy, Istanbul

34722, Turkey^4

Yildiz Technical University, Faculty of Electric-Electronic Engineering, Department of Electric Eng., Istanbul

34220, Turkey^5

Marmara University, Faculty of Technology, Department of Electrical and Electronic Eng., Kadikoy, Istanbul

34722, Turkey^6

Istanbul University, Vocational School of Technical Sciences, Department of Biomedical Devices Technology, Istanbul, Turkey^7

Marmara University, Faculty of Engineering, Department of Bioengineering, Kadikoy, Istanbul

34722, Turkey^8

关键词: Ac Conductivity;    Chemical method;    Dc conductivity;    Engineering applications;    Frequency ranges;    Natural sources;    Sintering temperatures;    Varying temperature;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/293/1/012002/pdf
DOI  :  10.1088/1757-899X/293/1/012002

来源: IOP

【 摘 要 】

Bioceramics, especially calcium phosphate based bioceramics, whose examples are hydroxyapatite, and calcium phosphate powders have been widely used in the biomedical engineering applications. Hydroxyapatite (HA) is one of the most promising biomaterials, which are derived from natural sources, chemical method, animal like dental enamel and corals. The influence of sintering temperature on the electrical properties (i.e. DC conductivity, AC conductivity) of samples of sintered sheep enamel (SSSE) was studied in air and in vacuum ambient at room temperature. The sheep enamel were sintered at varying temperatures between 1000°C and 1300°C. DC conductivity results revealed that while dc conductivity of the SSSE decreases with increasing the sintering temperature in air ambient the values increased with increasing the sintering temperature in vacuum ambient. AC conductivity measurements were performed in the frequency range of 40 Hz - 105Hz. The results showed that ac conductivity values decrease with increasing the sintering temperature.