Mo2TiAlC2: A new ordered layered ternary carbide

نویسندگان

  • Babak Anasori
  • Joseph Halim
  • Jun Lu
  • Michel W. Barsoum
  • Cooper A. Voigt
  • Lars Hultman
چکیده

Herein we report on the synthesis of a new layered ternary carbide, viz. Mo2TiAlC2, that was synthesized by heating an elemental mixture at 1600 oC for 4 h under Ar flow. Its lattice parameters were calculated via Rietveld analysis of powder Xray diffraction patterns to be 2.997 Å and 18.661 Å. High-resolution scanning transmission electron microscopy further showed that this phase is ordered, with the Ti layers sandwiched between two Mo layers in a M3AX2 type layered ternary carbide structure.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Discovery of carbon-vacancy ordering in Nb4AlC3–x under the guidance of first-principles calculations

The conventional wisdom to tailor the properties of binary transition metal carbides by order-disorder phase transformation has been inapplicable for the machinable ternary carbides (MTCs) due to the absence of ordered phase in bulk sample. Here, the presence of an ordered phase with structural carbon vacancies in Nb4AlC3-x (x ≈ 0.3) ternary carbide is predicted by first-principles calculations...

متن کامل

Thin Film Synthesis of New Nanolaminated Ternary Carbides

Ternary transition metal carbides with inherently nanolaminated crystal structure are a class of materials with typically higher damage tolerance, better machinability and lower brittleness compared to the binary counterparts, yet retaining their satisfactory electrical and thermal conductivity. Their interesting properties can be related to the laminated structure. Though studies of their prop...

متن کامل

A Two-Dimensional Zirconium Carbide by Selective Etching of Al3C3 from Nanolaminated Zr3Al3C5.

The room-temperature synthesis of a new two-dimensional (2D) zirconium-containing carbide, Zr3C2T(z) MXene is presented. In contrast to traditional preparation of MXene, the layered ternary Zr3Al3C5 material instead of MAX phases is used as source under hydrofluoric acid treatment. The structural, mechanical, and electronic properties of the synthesized 2D carbide are investigated, combined wit...

متن کامل

Structure of a new bulk Ti5Al2C3 MAX phase produced by the topotactic transformation of Ti2AlC

Upon annealing cold-pressed Ti2AlC, -325 mesh powders, at 1500 °C for 8 h in argon, the resulting partially sintered sample contained 43(±2) wt.% of the layered ternary carbide Ti5Al2C3. Herein, the X-ray powder diffraction pattern of Ti5Al2C3 is reported for the first time. Its structure and stoichiometry are confirmed through high-resolution transmission electron microscopy. This phase has a ...

متن کامل

Ternary self-assembly of ordered metal oxide-graphene nanocomposites for electrochemical energy storage.

Surfactant or polymer directed self-assembly has been widely investigated to prepare nanostructured metal oxides, semiconductors, and polymers, but this approach is mostly limited to two-phase materials, organic/inorganic hybrids, and nanoparticle or polymer-based nanocomposites. Self-assembled nanostructures from more complex, multiscale, and multiphase building blocks have been investigated w...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2015