SwePub
Sök i LIBRIS databas

  Extended search

WFRF:(Morgano Manuel)
 

Search: WFRF:(Morgano Manuel) > Coupling between cr...

Coupling between creep and redox behavior in nickel - yttria stabilized zirconia observed in-situ by monochromatic neutron imaging

Makowska, Malgorzata Grazyna (author)
Technical University of Denmark,European Spallation Source ESS AB
Kuhn, Luise Theil (author)
Technical University of Denmark
Frandsen, Henrik Lund (author)
Technical University of Denmark
show more...
Lauridsen, Erik Mejdal (author)
Xnovo Technology ApS
De Angelis, Salvatore (author)
Technical University of Denmark
Cleemann, Lars Nilausen (author)
Technical University of Denmark
Morgano, Manuel (author)
Paul Scherrer Institute
Trtik, Pavel (author)
Paul Scherrer Institute
Strobl, Markus (author)
Lund University,Lunds universitet,European Spallation Source ESS AB,Stiftelser och övriga anknutna verksamheter,Other Institutions and Utilities
show less...
 (creator_code:org_t)
Elsevier BV, 2017
2017
English 9 s.
In: Journal of Power Sources. - : Elsevier BV. - 0378-7753. ; 340, s. 167-175
  • Journal article (peer-reviewed)
Abstract Subject headings
Close  
  • Ni-YSZ (nickel - yttria stabilized zirconia) is a material widely used for electrodes and supports in solid oxide electrochemical cells. The mechanical and electrochemical performance of these layers, and thus the whole cell, depends on their microstructure. During the initial operation of a cell, NiO is reduced to Ni. When this process is conducted under external load, like also present in a stack assembly, significant deformations of NiO/Ni-YSZ composite samples are observed. The observed creep is orders of magnitude larger than the one observed after reduction during operation. This phenomenon is referred to as accelerated creep and is expected to have a significant influence on the microstructure development and stress field present in the Ni-YSZ in solid oxide electrochemical cells (SOCs), which is highly important for the durability of the SOC. In this work we present energy selective neutron imaging studies of the accelerated creep phenomenon in Ni/NiO-YSZ composite during reduction and also during oxidation. This approach allowed us to observe the phase transition and the creep behavior simultaneously in-situ under SOC operation-like conditions.

Subject headings

TEKNIK OCH TEKNOLOGIER  -- Materialteknik -- Annan materialteknik (hsv//swe)
ENGINEERING AND TECHNOLOGY  -- Materials Engineering -- Other Materials Engineering (hsv//eng)

Keyword

Creep
Neutron imaging
Ni-YSZ cermet
Solid oxide cells

Publication and Content Type

art (subject category)
ref (subject category)

Find in a library

To the university's database

Search outside SwePub

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Close

Copy and save the link in order to return to this view