The role of grain boundary energy in grain boundary complexion transitions

GS Rohrer - Current Opinion in Solid State and Materials Science, 2016 - Elsevier
Recent findings about the role of the grain boundary energy in complexion transitions are
reviewed. Grain boundary energy distributions are most commonly evaluated using …

Barium titanate-based thermistors: Past achievements, state of the art, and future perspectives

JG Bell, T Graule, M Stuer - Applied Physics Reviews, 2021 - pubs.aip.org
Barium titanate materials displaying a positive temperature coefficient of resistivity are
ubiquitously employed as thermistors in electrical current and voltage control systems, as …

Review of grain boundary complexion engineering: Know your boundaries

AR Krause, PR Cantwell, CJ Marvel… - Journal of the …, 2019 - Wiley Online Library
Grain boundary structure‐property relationships influence bulk performance and, therefore,
are an important criterion in materials design. Materials scientists can generate different …

Gain in polycrystalline Nd-doped alumina: leveraging length scales to create a new class of high-energy, short pulse, tunable laser materials

EH Penilla, LF Devia-Cruz, MA Duarte… - Light: Science & …, 2018 - nature.com
Traditionally accepted design paradigms dictate that only optically isotropic (cubic) crystal
structures with high equilibrium solubilities of optically active ions are suitable for …

Universal function for grain boundary energies in bcc metals

O Chirayutthanasak, R Sarochawikasit, S Khongpia… - Scripta Materialia, 2024 - Elsevier
Constructing microstructure-property-processing relationships in polycrystalline metals
remains a challenge mainly due to the lack of quantitative relations between grain boundary …

Photoluminescence and optical properties of Eu3+/Eu2+-doped transparent Al2O3 ceramics

R Klement, K Drdlíková, M Kachlík, D Drdlík… - Journal of the european …, 2021 - Elsevier
Abstract Transparent Eu 3+-doped (0.05–0.15 at.%) alumina ceramics with fine-grained
microstructure were prepared and studied in terms of optical properties and …

Expanding time–temperature-transformation (TTT) diagrams to interfaces: A new approach for grain boundary engineering

PR Cantwell, S Ma, SA Bojarski, GS Rohrer… - Acta Materialia, 2016 - Elsevier
Bulk phase transformation kinetics were not well understood before Davenport and Bain
developed time–temperature-transformation (TTT) diagrams for steel alloys in the 1930s …

The equilibrium crystal shape of strontium titanate and its relationship to the grain boundary plane distribution

W Rheinheimer, M Bäurer, H Chien, GS Rohrer… - Acta Materialia, 2015 - Elsevier
In this study, the equilibrium crystal shape (ECS) of a model system, strontium titanate, is
compared with the grain boundary plane distribution (GBPD) as a function of temperature …

Interface energies of nanocrystalline doped ceria: effects of manganese segregation

L Wu, JA Aguiar, PP Dholabhai… - The Journal of …, 2015 - ACS Publications
The thermodynamics of nanoparticles is strongly dependent on their surface energy as it
accounts for a large fraction of the total atomic volume. Grain boundary energies are equally …

The influence of dopants and complexion transitions on grain boundary fracture in alumina

L Feng, R Hao, J Lambros, SJ Dillon - Acta Materialia, 2018 - Elsevier
The fracture of micro-cantilever Al 2 O 3 specimens containing single grain boundaries is
quantified via in situ bending experiments performed in the transmission electron …