Research Summary
Randall’s research interests are in the area of discovery and compositional design of functional materials for electrical energy transduction and storage, defect chemistry and crystal chemistry and their impact on phase transition behavior, electromechanical devices based upon electrostriction and piezoelectrics, supercapacitors, thermoelectrics, and microwave materials. He has used a variety of different processing and characterization methods that have impacted manufacturing and development processes for materials, particularly in the capacitor and piezoelectric industry.
In the News
Research Keywords
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Projects
Recent Publications
Influences of processing temperatures on the nature of polarization phenomena in 85% (Bi0.5Na0.5)TiO3-15%BaTiO3 with different strategies of bismuth oxide non-stoichiometry
Fan, Z. & Randall, C. A., Jun 7 2023, In: Journal of Applied Physics. 133, 21, 214101.Research output: Contribution to journal ⺠Article ⺠peer-review
Understanding the depolarization temperature in (Bi0.5Na0.5)TiO3-based ferroelectrics
Fan, Z., Momjian, S. & Randall, C. A., Aug 2023, In: Journal of the European Ceramic Society. 43, 9, p. 4021-4028 8 p.Research output: Contribution to journal ⺠Article ⺠peer-review
Crystallization of LiNbO3 and NaNbO3 in niobiosilicate glassâceramics
Gerace, K. S., Randall, C. A. & Mauro, J. C., Apr 2023, In: Journal of the American Ceramic Society. 106, 4, p. 2716-2731 16 p.Research output: Contribution to journal ⺠Article ⺠peer-review
Scaling up the cold sintering process of ceramics
Jabr, A., Jones, H. N., Argüelles, A. P., Trolier-McKinstry, S., Randall, C. & Bermejo, R., Sep 2023, In: Journal of the European Ceramic Society. 43, 12, p. 5319-5329 11 p.Research output: Contribution to journal ⺠Article ⺠peer-review
The effect of liquid phase chemistry on the densification and strength of cold sintered ZnO
Jabr, A., Fanghanel, J., Fan, Z., Bermejo, R. & Randall, C., Apr 2023, In: Journal of the European Ceramic Society. 43, 4, p. 1531-1541 11 p.Research output: Contribution to journal ⺠Article ⺠peer-review
Wake up and retention in zinc magnesium oxide ferroelectric films
Jacques, L., Ryu, G., Goodling, D., Bachu, S., Taheri, R., Yousefian, P., Shetty, S., Akkopru-Akgun, B., Randall, C., Alem, N., Maria, J. P. & Trolier-McKinstry, S., Jun 14 2023, In: Journal of Applied Physics. 133, 22, 224102.Research output: Contribution to journal ⺠Article ⺠peer-review
Thermal-assisted cold sintering study of Al2O3 ceramics: Enabled with a soluble γ-Al2O3 intermediate phase
Kang, S., Zhao, X., Guo, J., Liang, J., Sun, J., Yang, Y., Yang, L., Liao, R. & Randall, C. A., Feb 2023, In: Journal of the European Ceramic Society. 43, 2, p. 478-485 8 p.Research output: Contribution to journal ⺠Article ⺠peer-review
The Electrodegradation Process in PZT Ceramics under Exposure to Cosmic Environmental Conditions
Lazar, I., Rodenbücher, C., Bihlmayer, G., Randall, C. A., Koperski, J., Nielen, L., Roleder, K. & Szot, K., May 2023, In: Molecules. 28, 9, 3652.Research output: Contribution to journal ⺠Article ⺠peer-review
Sodium molybdate-hexagonal boron nitride composites enabled by cold sintering for microwave dielectric substrates
Mena-Garcia, J., Ndayishimiye, A., Fan, Z., Perini, S. E., Li, W., Poudel, B., Priya, S., Foley, B., Gaskins, J. & Randall, C. A., Oct 2023, In: Journal of the American Ceramic Society. 106, 10, p. 5975-5985 11 p.Research output: Contribution to journal ⺠Article ⺠peer-review
The unusual case of plastic deformation and high dislocation densities with the cold sintering of the piezoelectric ceramic K0.5Na0.5NbO3
Nakagawa, K., Iwasaki, M., Fan, Z., Roscow, J. I. & Randall, C. A., Aug 2023, In: Journal of the European Ceramic Society. 43, 9, p. 4015-4020 6 p.Research output: Contribution to journal ⺠Article ⺠peer-review
Reassessing cold sintering in the framework of pressure solution theory
Ndayishimiye, A., Bang, S. H., Spiers, C. J. & Randall, C. A., Jan 2023, In: Journal of the European Ceramic Society. 43, 1, p. 1-13 13 p.Research output: Contribution to journal ⺠Review article ⺠peer-review
Erratum: Cold sintering of yttria-stabilized cubic bismuth oxide: Conductivity and microstructural evolution of metastable grain boundaries with annealing (Journal of Applied Physics (2020) 128 (215104) DOI: 10.1063/5.0014287)
Tsuji, K., Herisson De Beauvoir, T., Ndayishimiye, A., Wang, K. & Randall, C. A., Feb 7 2023, In: Journal of Applied Physics. 133, 5, 059901.Research output: Contribution to journal ⺠Comment/debate ⺠peer-review
Utilizing time domain electrical methods to monitor MLCCs' degradation
Yousefian, P., Rajpoot, S. & Randall, C. A., Mar 13 2023, In: Applied Physics Letters. 122, 11, 112902.Research output: Contribution to journal ⺠Article ⺠peer-review
Morphological and chemical evolution of transient interfaces during zinc oxide cold sintering process
Bang, S. H., Sengul, M. Y., Fan, Z., Ndayishimiye, A., van Duin, A. C. T. & Randall, C. A., Jun 2022, In: Materials Today Chemistry. 24, 100925.Research output: Contribution to journal ⺠Article ⺠peer-review
Altering interfacial properties through the integration of C60 into ZnO ceramic via cold sintering process
Guo, J., Si, M., Zhao, X., Wang, L., Wang, K., Hao, J., Wang, H. & Randall, C. A., Apr 30 2022, In: Carbon. 190, p. 255-261 7 p.Research output: Contribution to journal ⺠Article ⺠peer-review