Zobrazeno 1 - 10
of 202
pro vyhledávání: '"Han-ill Yoo"'
Publikováno v:
Scientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
Abstract Mass relaxation profile of a perovskite-type oxide, BaCe0.9Y0.1O3−δ, was studied to understand decoupled diffusion of oxygen and hydrogen species during hydration/dehydration. The mass relaxation measurements are performed by thermogravim
Externí odkaz:
https://doaj.org/article/a1c81d29877f4fc2a68d89e5fee5b512
Solid state ionics is concerned with the science and technology of ions in motion in the solid state. Ions in motion may also involve electrons, depending on the materials and surroundings. These days, solid state ionics is finding an increasing vari
Publikováno v:
Physical chemistry chemical physics : PCCP. 23(28)
It has previously been predicted [H.-I. Yoo and M. Martin, Phys. Chem. Chem. Phys., 2010, 12, 14699] and observed [E. Kim, et al., Solid State Ionics, 2013, 235, 22] that the open-circuit voltage U of a galvanic cell, involving a ternary or higher co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dca21703f55f9897c5366199184bb67d
https://pubmed.ncbi.nlm.nih.gov/34251005
https://pubmed.ncbi.nlm.nih.gov/34251005
Autor:
Han-Ill Yoo
Publikováno v:
Lectures on Kinetic Processes in Materials ISBN: 9783030259495
From the continuum point of view, diffusivity is a measure of mean square displacement in a given diffusion time, thus having the unit of m2/s. Here, the meaning of diffusivity is explored from the discrete atomic point of view. Consequently, we will
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b027e7034b03831cac0315cb1ebffde7
https://doi.org/10.1007/978-3-030-25950-1_2
https://doi.org/10.1007/978-3-030-25950-1_2
Autor:
Han-Ill Yoo
Publikováno v:
Lectures on Kinetic Processes in Materials ISBN: 9783030259495
Nucleation of a daughter phase is followed by growth and later on coarsening to finish up a phase transformation. There are three types of growth processes depending on without/with phase change and without/with composition change. We will first lear
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::78aeba18fa8763413d35387ed9671680
https://doi.org/10.1007/978-3-030-25950-1_6
https://doi.org/10.1007/978-3-030-25950-1_6
Autor:
Han-Ill Yoo
Publikováno v:
Lectures on Kinetic Processes in Materials ISBN: 9783030259495
This chapter is concerned with the phenomenon of interdiffusion (or chemical diffusion) under a concentration (or chemical) gradient in a binary system. When the self-diffusivities of the two components are different, there arises a global drift of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c4e3ad67bfbc8589f85875e19581b998
https://doi.org/10.1007/978-3-030-25950-1_4
https://doi.org/10.1007/978-3-030-25950-1_4
Autor:
Han-Ill Yoo
Publikováno v:
Lectures on Kinetic Processes in Materials ISBN: 9783030259495
When a metal is exposed to an oxidizing gas, say, oxygen, a tarnishing layer or oxide forms upon the metal. When a metallic alloy is exposed, an oxide of the less noble component of the alloy may form internally. Thermodynamics of oxidation is discus
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::987bc7b48cfbefb76ee09f5323c2e46b
https://doi.org/10.1007/978-3-030-25950-1_8
https://doi.org/10.1007/978-3-030-25950-1_8
Autor:
Han-Ill Yoo
Publikováno v:
Lectures on Kinetic Processes in Materials ISBN: 9783030259495
Understanding and control of the atomic mobility in materials makes one of the fundamentals of the discipline of materials engineering in general. A typical manifestation of the atomic mobility is the phenomenon of diffusion, and the diffusion rate i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f940102507fa86d43fe039a60aa8db63
https://doi.org/10.1007/978-3-030-25950-1_1
https://doi.org/10.1007/978-3-030-25950-1_1
Autor:
Han-Ill Yoo
Publikováno v:
Lectures on Kinetic Processes in Materials ISBN: 9783030259495
For a phase to transform, a daughter phase should first be conceived out of the mother phase, which is either via nucleation or via spinodal decomposition. Here, we will learn the classic basic ideas on the kinetics of these two conception processes:
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4794916cb5a08d3b4612ef1e306ec3fc
https://doi.org/10.1007/978-3-030-25950-1_5
https://doi.org/10.1007/978-3-030-25950-1_5