journal article·2022-02-01Open access

pH-controlled synthesis and spark plasma sintering of fine and homogeneous MgZr4(PO4)6 powder

Kenta FUKUSHIMA, Tohru S. SUZUKI, Cem Eren ÖZBILGIN, Kiyoshi KOBAYASHI, Hiroya ABE, Yoshikazu SUZUKI

Abstract

MgZr4(PO4)6 is an Mg2+ ion conductor with an isotropic three-dimensional network structure. In this study, we have examined the effect of pH adjustment on the synthesis of fine MgZr4(PO4)6 powders by a sol–gel method from Mg(NO3)2·6H2O, ZrCl2O·8H2O, and NH4H2PO4. X-ray diffraction and transmission electron microscopy analyses revealed that controlling the pH at ∼10.1 during the sol–gel process was favorable for obtaining fine MgZr4(PO4)6 powder, and it was also beneficial for obtaining almost single-phase sintered MgZr4(PO4)6. Spark plasma sintering of the pH-controlled powder at 1200 °C for 10 min resulted in 94.1 % dense MgZr4(PO4)6, which had an electrical conductivity of 8.38 × 10−4 S cm−1 at 800 °C.
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Research context

OpenAlex topics: MXene and MAX Phase Materials · Inorganic Chemistry and Materials · Chemical Synthesis and Characterization

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Affiliations

Graduate School of Science and Technology, University of Tsukuba

Ceramics Processing Group, Research Center for Functional Materials, National Institute for Materials Science

Department of Nanoscience and Nanoengineering, Graduate School of Advanced Science and Engineering, Waseda University

Joining and Welding Research Institute, Osaka University

Faculty of Pure and Applied Sciences, University of Tsukuba

References (15)

Show source-provided references
1. 1) E. R. Gobechiya, M. V. Sukhanov, V. I. Pet’kov and Y. K. Kabalov, Crystallogr. Rep., 53, 53–59 (2008).10.1134/S1063774508010069 ↗
2. 2) K. Nakano, Y. Noda, N. Tanibata, M. Nakayama, K. Kajihara and K. Kanamura, RSC Adv., 9, 12590–12595 (2019).10.1039/C9RA00513G ↗
3. 3) S. Ikeda, M. Takahashi, J. Ishikawa and K. Ito, Solid State Ionics, 23, 125–129 (1987).10.1016/0167-2738(87)90091-9 ↗
4. 4) A. Kazakos-Kijowski, S. Komarneni, D. Agrawal and R. Roy, Mater. Res. Bull., 23, 1177–1184 (1988).10.1016/0025-5408(88)90209-7 ↗
5. 5) K. Nomura, S. Ikeda, K. Ito and H. Einaga, Chem. Lett., 21, 1897–1900 (1992).
6. 6) K. Nomura, S. Ikeda, K. Ito and H. Einaga, J. Electroanal. Chem., 326, 351–356 (1992).10.1016/0022-0728(92)80523-7 ↗
7. 7) S. Ikeda, S. Kato, K. Nomura, K. Ito, H. Einaga, S. Saito and Y. Fujita, Solid State Ionics, 70/71, 569–571 (1994).10.1016/0167-2738(94)90374-3 ↗
8. 8) L. Wang and R. V. Kumar, J. Electroanal. Chem., 543, 109–114 (2003).10.1016/S0022-0728(02)01438-9 ↗
9. 9) G. M. Kale, L. Wang and Y. R. Hong, Int. J. Appl. Ceram. Tec., 1, 180–187 (2004).10.1111/j.1744-7402.2004.tb00168.x ↗
10. 10) S. Y. Limaye, D. K. Agrawal and H. A. Mckinstry, J. Am. Ceram. Soc., 70, C232–C236 (1987).10.1111/j.1151-2916.1987.tb04884.x ↗
11. 11) A. Mielewczyk, S. Molin, K. Gdula, G. Jasinski, B. Kusz, P. Jasinski and M. Gazda, Mater. Ceram., 62, 477–480 (2010).
12. 12) M. Adamu and G. M. Kale, J. Phys. Chem. C, 120, 17909–17915 (2016).10.1021/acs.jpcc.6b05036 ↗
13. 13) K. Kobayashi, Y. Sakka and T. S. Suzuki, J. Ceram. Soc. Jpn., 124, 943–949 (2016).10.2109/jcersj2.16120 ↗
14. 14) A. K. Ivanov-Schitz and A. B. Bykov, Solid State Ionics, 100, 153–155 (1997).10.1016/S0167-2738(97)00267-1 ↗
15. 15) K. Momma and F. Izumi, J. Appl. Crystallogr., 44, 1272–1276 (2011).10.1107/S0021889811038970 ↗