Syntheses and physical properties of the MAX phase boride Nb2SB and the solid solutions Nb2S

Tobias Rackl

¹

,

Lucien Eisenburger

²

,

Robin Niklaus

³

et al.

Prediction of double transition metal (Cr1−xZrx)2AlC MAX phases as thermal barrier coatings: Insight from density functional theory

“…The physical properties of materials such as thermal expansion, thermal conductivity, lattice vibrations, melting temperature, and specific heat are normally expressed to the Debye temperature (θ D ). Moreover, it is also connected to the superconducting transition temperature and electron-phonon coupling constant in the case of superconductors [57]. The Debye temperature can be calculated from Anderson's proposed average sound velocity which is related to the elastic module and expressed as below [58]:…”

2D Ti3C2Tz MXene Synthesized by Water-free Etching of Ti3AlC2 in Polar Organic Solvents

“…MXenes have a general formula M n+1 X n T z and are so called because they are derived by etching the A atomic layers from the parent MAX (M n+1 AX n ) phase, where M stands for an early transition metal, A is mostly a group 13 or 14 element, and X stands for C, N, or B. 9,10 The -ene suffix was added to make the connection to other 2D materials, such as graphene, silicene, etc. The T z in the chemical formula stands for the various -O, -OH, and -F surface terminations that replace the Al layers upon etching.…”

Chemically stable new MAX phase V2SnC: a damage and radiation tolerant TBC material

“…MAX phases are a family of more than 80 ternary carbides, nitrides and borides in hexagonal crystal symmetry. 1,2 This family is chemically represented as M n+1 AX n , where M is an early transition metal, A is an A-group element, X is C or N or B, and the integer 'n' ranges from 1 to 3. 3 Depending on the value of layer index n, MAX phases are categorized as 211, 312 and 413 phases for n ¼ 1, 2, 3, respectively.…”