Scholars@Duke
Miaofang Chi

Miaofang Chi

Professor in the Thomas Lord Department of Mechanical Engineering and Materials Science
Thomas Lord Department of Mechanical Engineering and Materials Science

Scholarly Works - Conferences

Observation of Ultra-Thin Polar Domains in La-doped HfO2

Conference Microscopy and Microanalysis · July 24, 2024 Full text Cite

Atomic Scale Observation of Incommensurate Modulation in Ba2TiSi2O8

Conference Microscopy and Microanalysis · July 24, 2024 Full text Cite

Colossal Birefringence from Periodic Structural Modulations

Conference 2023 Conference on Lasers and Electro Optics CLEO 2023 · January 1, 2023 We introduce structural modulation as a new mechanism for achieving colossal optical anisotropy. Modulated nonstoichiometric material Sr9/8TiS3 is shown to have an extraordinary refractive index ne = 4.5 and ordinary refrac ... Cite

Colossal Birefringence from Periodic Structural Modulations

Conference CLEO Science and Innovations CLEO S and I 2023 · January 1, 2023 We introduce structural modulation as a new mechanism for achieving colossal optical anisotropy. Modulated nonstoichiometric material Sr9/8TiS3 is shown to have an extraordinary refractive index ne = 4.5 and ordinary refractive index no Full text Cite

Atomic-scale Insights into the Ion Conduction in Solid Electrolytes and at Their Interfaces

Conference 35th Annual International Battery Seminar and Exhibit 2018 · January 1, 2018 Cite

Uncovering the roles of oxygen vacancies in cation migration in lithium excess layered oxides

Conference Physical Chemistry Chemical Physics · July 28, 2014 A novel oxygen vacancy assisted transition metal (TM) diffusion mechanism is proposed for the first time to explain the near-surface phase transformation in lithium excess transition metal layered oxides. Oxygen vacancies and TM migration have been observe ... Full text Cite

Structural variability of edge dislocations in a SrTiO 3 low-angle [001] tilt grain boundary

Conference Journal of Materials Research · July 1, 2009 Using a spherical aberration (Cs)-corrected scanning transmission electron microscopy (STEM) and electron energy-loss spectroscopy (EELS), we investigated a 6° low-angle [001] tilt grain boundary in SrTiO 3. The enhanced spatial resolution of th ... Full text Cite

Misfit dislocations in ferroelectric thin films

Conference Microscopy and Microanalysis · August 1, 2008 Full text Cite

A TEM study on the doping behavior of calcium in LaCoO3

Conference Microscopy and Microanalysis · August 1, 2006 Full text Cite

Applications of atomic scale scanning transmission electron microscopy

Conference Microscopy and Microanalysis · August 1, 2006 Full text Cite

Effect of TiO2-SiO2 distribution on bimodal microstructure of TiO2-doped α-Al2O3 ceramics

Conference Zeitschrift Fuer Metallkunde Materials Research and Advanced Techniques · January 1, 2005 Distribution of TiO2 dopants and SiO2 impurities in the bimodal microstructure of Al2O3 with anisotropic and equiaxed grains is systematically analyzed using analytical electron microscopy (AEM). The TiO2 Full text Cite

Comparison of sgregation behaviors for special and general boundaries in polycrystalline Al2O3 with SiO2-TiO2 impurities

Conference Interface Science · April 1, 2004 A systematic study of grain boundaries with an elongated grain morphology in TiO2doped polycrystalline Al2O3 materials with SiO2 impurities is reported in this paper. Over 20 grain boundaries, all having common ( ... Full text Cite