A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
HIGH-ENTROPY OXIDES FOR THERMAL BARRIER COATING (TBC) TOP COATS
A thermal barrier coating (TBC) top coat which is a high entropy oxide (HEO) having a high configurational entropy, contains at least 5 different oxide-forming metallic cations, is a single phase or single crystalline structure, such as tetragonal or cubic over unexpectedly wide temperature ranges up to and beyond top coat operating temperatures of preferably at least 2300° F. The TBC top coats exhibit low thermal conductivity, good sintering resistance, excellent phase stability and good thermal cycling performance. At least five of the different oxide-forming metallic cations include: a) at least one of the transition metals: Sc, Y, Ti, Zr, V, Nb, Ta, Cr, Mo, W, Mn, Re, Fe, Ru, Co, Ni, Cu, or Zn, and/or at least one of the lanthanides La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb. Dy, Ho, Er, Yb, or Lu. One of the at least five different oxide-forming metallic cations may also comprise at least one of the alkaline-earth metals: Be, Mg, Ca, Sr, or Ba.
HIGH-ENTROPY OXIDES FOR THERMAL BARRIER COATING (TBC) TOP COATS
A thermal barrier coating (TBC) top coat which is a high entropy oxide (HEO) having a high configurational entropy, contains at least 5 different oxide-forming metallic cations, is a single phase or single crystalline structure, such as tetragonal or cubic over unexpectedly wide temperature ranges up to and beyond top coat operating temperatures of preferably at least 2300° F. The TBC top coats exhibit low thermal conductivity, good sintering resistance, excellent phase stability and good thermal cycling performance. At least five of the different oxide-forming metallic cations include: a) at least one of the transition metals: Sc, Y, Ti, Zr, V, Nb, Ta, Cr, Mo, W, Mn, Re, Fe, Ru, Co, Ni, Cu, or Zn, and/or at least one of the lanthanides La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb. Dy, Ho, Er, Yb, or Lu. One of the at least five different oxide-forming metallic cations may also comprise at least one of the alkaline-earth metals: Be, Mg, Ca, Sr, or Ba.
HIGH-ENTROPY OXIDES FOR THERMAL BARRIER COATING (TBC) TOP COATS
HOCHENTROPISCHE OXIDE FÜR DECKSCHICHTEN MIT WÄRMEDÄMMSCHICHT
OXYDES À ENTROPIE ÉLEVÉE POUR REVÊTEMENTS SUPÉRIEURS DE REVÊTEMENT DE BARRIÈRE THERMIQUE (TBC)
HE JIANHONG (author) / LOVELOCK HEIDI LYNETTE (author) / ZHOU NAIXIE (author) / HARRINGTON TYLER (author) / SHAROBEM TIMOTHY (author)
2022-10-12
Patent
Electronic Resource
English
HIGH-ENTROPY OXIDES FOR THERMAL BARRIER COATING (TBC) TOP COATS
| European Patent Office | 2020
HIGH-ENTROPY OXIDES FOR THERMAL BARRIER COATING (TBC) TOP COATS
| European Patent Office | 2021
Comparative performance of selected bond coats in advanced thermal barrier coating systems
| British Library Online Contents | 2000
| British Library Online Contents | 2001
Low-thermal-conductivity high-entropy ceramic thermal barrier coating material
| European Patent Office | 2022