Results 1 to 10 of about 7,481 (302)

How CMAS infiltration degrades grain boundaries in thermal barrier ceramics: dual pathways to embrittlement. [PDF]

Npj Mater Degrad
Thermal barrier coatings used in aeroengines are vulnerable to calcia–magnesia–alumino–silicate (CMAS) attack, which infiltrates through pores and grain boundaries (GBs), accelerating coating degradation.
Liu Y, Williams CJ, Brewster G, Pawley A, Xiao P, Chen Y.   +5 more
europepmc   +2 more sources

Effect of yttria content on CMAS resistance of YSZ thermal barrier coatings

Journal of Aeronautical Materials, 2023
The corrosion behavior and mechanism of environmental sediment（CMAS molten salt）on different YO1.5-doped zirconia coatings（8YSZ, 38YSZ and 55YSZ）sprayed by atmospheric plasma at 1300 ℃ have been systematically studied.
WANG Jing, LU Jie, ZHAO Xiaofeng, CHEN Xiaolong, HUANG Yinan, ZHANG Han   +5 more
doaj   +1 more source

Crystallization behavior of calcium–magnesium–alumina–silicate coupled with NaCl/Na2SO4

Corrosion Communications, 2023
Promoting molten calcium–magnesium–alumina–silicate (CMAS) crystallization can highly reduce the melt penetration into thermal barrier coatings (TBCs), which alleviates its corrosion to TBCs. In marine environments, many salts are coupled with CMAS.
Xinmu Zhang, Hui Xin, Lei Guo
doaj   +1 more source

Numerical Study on Effect of Non-uniform CMAS Penetration on TGO Growth and Interface Stress Behavior of APS TBCs

Chinese Journal of Mechanical Engineering, 2021
The penetration of CaO–MgO–Al2O3–SiO2 (CMAS) is one of the most significant factors that induce the failure of air-plasma-sprayed thermal barrier coatings (APS TBCs).
Zhenwei Cai, Zifan Zhang, Yingzheng Liu, Xiaofeng Zhao, Weizhe Wang   +4 more
doaj   +1 more source

Structural, geochemical, and mineralogical investigation of active hydrothermal fluid discharges at Strýtan hydrothermal chimney, Akureyri Bay, Eyjafjörður region, Iceland

Geothermal Energy, 2017
A submarine hydrothermal fluid discharge structure in Akureyri Bay, Eyjafjörður region, Iceland, was investigated by means of structural, geochemical, and mineralogical methods.
Richard Stanulla, Christiane Stanulla, Erlendur Bogason, Thomas Pohl, Broder Merkel   +4 more
doaj   +1 more source

Research Status of Thermal Barrier Coatings in Aero-engine Application

Hangkong gongcheng jinzhan, 2020
With the increase of the operation environment requirements for aero-engine, the thermal barrier coating technology is difficult to satisfy the development requirement of aero-engine in the aspects of thermo-physical properties and thermo-stability.
PENG Rui, CHANG Zhendong, SUN Lili
doaj   +1 more source

CMAS deposition rate and sequence effects on cyclic life in gradient testing

SN Applied Sciences, 2023
Thermal barrier coating (TBC) resistance to varied CMAS deposition rates was experimentally assessed using a temperature gradient rig using a CMAS precursor spray. TBCs were composed of EB-PVD YSZ.
Byung-gun Jun, Nils Jonsson, Eric H. Jordan, Ryan C. Cooper   +3 more
doaj   +1 more source

Development of New Radar and Pyroelectric Sensors for Road Safety Increase in Cloud-Based Multi-Agent Control Application

The Baltic Journal of Road and Bridge Engineering, 2021
The paper concentrates on the design, architecture, and monitoring of smart LED street lighting control, with focus on traffic safety and safe road infrastructure. The use of a CMAS (Cloud-Based Multi-Agent System) as a possible framework is investigated.
Leslie Robert Adrian, Ansis Avotins, Donato Repole, Olegs Tetervenoks   +3 more
doaj   +1 more source

Quality by Design: Development of the Quality Target Product Profile (QTPP) for Semisolid Topical Products

Pharmaceutics, 2020
In recent years, the “quality by design” (QbD) approach has been used for developing pharmaceutical formulations. This is particularly important for complex dosage forms such as topical semisolid products.
Sarika Namjoshi, Maryam Dabbaghi, Michael S. Roberts, Jeffrey E. Grice, Yousuf Mohammed   +4 more
doaj   +1 more source

CMAS-phobic and infiltration-inhibiting protective layer material for thermal barrier coatings

Journal of Advanced Ceramics
Calcium–magnesium–alumina–silicate (CMAS) corrosion has attracted special attention in the thermal barrier coating (TBC) field. At high temperatures, when CMAS melts, it adheres to the coating surface and penetrates the interior, severely destroying the ...
Shijun Meng, Lei Guo, Hongbo Guo, Yuanpeng Wang, Hongli Liu   +4 more
doaj   +1 more source