Study on Effective Elastic Properties of CaMnO3

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Calcium manganese oxide (CaMnO3) polycrystalline was synthesized by solid state reaction (SSR) and hot-press (HP) methods. The powder of CaCO3 and MnO2 were mixed by ball milling then calcined at 850°C for 10 h and hotpressing at 850 °C for 1 h to obtain the CaMnO3 samples. The crystallography of the samples was analyzed by the X-ray diffraction (XRD). The microstructures of the samples were observed by scanning electron microscope (SEM). It was found that, the sintering process influence the crystalline perfection and have a direct impact on the mechanical properties of CaMnO3 and their aging behavior. The values of the effective elastic modulus was 6 GPa and Flexural strength was 0.417 MPa of CaMnO3 were found to be in the range of corresponding values for high performance and possibility fabricated n-type thermoelectric leg.

[1] Prapawan Thongsri and Tosawat Seetawan. Advanced Materials Research (2013);770: 327-330.

[2] Della Bona A, Kelly JR. The clinical success of allceramic restorations.2008; 139.

[3] Della Bona A.Bonding to ceramics: scientific evidences for clinical dentistry. 1. São Paulo: ArtesMédicas.2009.

[4] W. Paszkowicz, J. Piętosa, S. M. Woodley, P. A. Dłużewski, M. Kozłowski, C. Martin.Powder Diffraction 2010; 25:46-59.

[5] E.O.Wollan,W.C.Koehler.Phys.Rev,1955;100: 545.

[6] Kong, W. J. Lu, L. Zhu, H. W. Wei, B. Q. Wu, D. H. J. Phys. Condens Matter2005;17:1923.

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