Quantitative analyses of TiC nanopowders via mechanical alloying method

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The synthesis of nanostructured TiC by mechanical alloying has been investigated in recent years; however, quantitative analysis of its activation energy and mechanical properties has seldom been performed. Thus, in this paper, the activation energy of TiC synthesis and the relationship between its mechanical properties, microstructure, and dislocation density are determined and thoroughly discussed. A mechanical alloying technique in a planetary ball mill for 15, 20, and 25h using Ti and C as feedstocks in argon (Ar) gas was employed to prepare nano-TiC powders. TiC crystallite sizes and lattice strain were evaluated by using X-ray diffraction based on the Williamson-Hall method. The activation energy, E a, of the as-milled powders was determined by combining differential scanning calorimetry curves with the Kissinger equation. The morphological properties, mechanical properties (hardness and Young's modulus), and the particles size distribution of the nanoceramics were examined using various techniques, including field-emission scanning electron microscope, transmission electron microscopy, nanoindentation, and atomic force microscopy. The milling time had a remarkable effect on the hardness and on Young's modulus, with particle sizes of 95.12, 80.22, and 64.18nm after 15, 20, and 25h of milling, respectively. Furthermore, the results revealed that the decrease in the nano-TiC roughness was associated with an increase in the milling time.

Original languageEnglish
JournalCeramics International
DOIs
Publication statusAccepted/In press - 2017

Fingerprint

Mechanical alloying
Activation energy
Mechanical properties
Powders
Elastic moduli
Hardness
Ball mills
Argon
Nanoindentation
Crystallite size
Particle size analysis
Field emission
Feedstocks
Differential scanning calorimetry
Atomic force microscopy
Electron microscopes
Gases
Surface roughness
Particle size
Transmission electron microscopy

Keywords

  • A. Milling
  • B. Grain size
  • C. Mechanical properties
  • D. Carbides

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Process Chemistry and Technology
  • Surfaces, Coatings and Films
  • Materials Chemistry

Cite this

Quantitative analyses of TiC nanopowders via mechanical alloying method. / Rajabi, Armin; Ghazali, Mariyam Jameelah.

In: Ceramics International, 2017.

Research output: Contribution to journalArticle

@article{f8d7bb3d4cd0485aa4f17f6274b72b8b,
title = "Quantitative analyses of TiC nanopowders via mechanical alloying method",
abstract = "The synthesis of nanostructured TiC by mechanical alloying has been investigated in recent years; however, quantitative analysis of its activation energy and mechanical properties has seldom been performed. Thus, in this paper, the activation energy of TiC synthesis and the relationship between its mechanical properties, microstructure, and dislocation density are determined and thoroughly discussed. A mechanical alloying technique in a planetary ball mill for 15, 20, and 25h using Ti and C as feedstocks in argon (Ar) gas was employed to prepare nano-TiC powders. TiC crystallite sizes and lattice strain were evaluated by using X-ray diffraction based on the Williamson-Hall method. The activation energy, E a, of the as-milled powders was determined by combining differential scanning calorimetry curves with the Kissinger equation. The morphological properties, mechanical properties (hardness and Young's modulus), and the particles size distribution of the nanoceramics were examined using various techniques, including field-emission scanning electron microscope, transmission electron microscopy, nanoindentation, and atomic force microscopy. The milling time had a remarkable effect on the hardness and on Young's modulus, with particle sizes of 95.12, 80.22, and 64.18nm after 15, 20, and 25h of milling, respectively. Furthermore, the results revealed that the decrease in the nano-TiC roughness was associated with an increase in the milling time.",
keywords = "A. Milling, B. Grain size, C. Mechanical properties, D. Carbides",
author = "Armin Rajabi and Ghazali, {Mariyam Jameelah}",
year = "2017",
doi = "10.1016/j.ceramint.2017.07.171",
language = "English",
journal = "Ceramics International",
issn = "0272-8842",
publisher = "Elsevier Limited",

}

TY - JOUR

T1 - Quantitative analyses of TiC nanopowders via mechanical alloying method

AU - Rajabi, Armin

AU - Ghazali, Mariyam Jameelah

PY - 2017

Y1 - 2017

N2 - The synthesis of nanostructured TiC by mechanical alloying has been investigated in recent years; however, quantitative analysis of its activation energy and mechanical properties has seldom been performed. Thus, in this paper, the activation energy of TiC synthesis and the relationship between its mechanical properties, microstructure, and dislocation density are determined and thoroughly discussed. A mechanical alloying technique in a planetary ball mill for 15, 20, and 25h using Ti and C as feedstocks in argon (Ar) gas was employed to prepare nano-TiC powders. TiC crystallite sizes and lattice strain were evaluated by using X-ray diffraction based on the Williamson-Hall method. The activation energy, E a, of the as-milled powders was determined by combining differential scanning calorimetry curves with the Kissinger equation. The morphological properties, mechanical properties (hardness and Young's modulus), and the particles size distribution of the nanoceramics were examined using various techniques, including field-emission scanning electron microscope, transmission electron microscopy, nanoindentation, and atomic force microscopy. The milling time had a remarkable effect on the hardness and on Young's modulus, with particle sizes of 95.12, 80.22, and 64.18nm after 15, 20, and 25h of milling, respectively. Furthermore, the results revealed that the decrease in the nano-TiC roughness was associated with an increase in the milling time.

AB - The synthesis of nanostructured TiC by mechanical alloying has been investigated in recent years; however, quantitative analysis of its activation energy and mechanical properties has seldom been performed. Thus, in this paper, the activation energy of TiC synthesis and the relationship between its mechanical properties, microstructure, and dislocation density are determined and thoroughly discussed. A mechanical alloying technique in a planetary ball mill for 15, 20, and 25h using Ti and C as feedstocks in argon (Ar) gas was employed to prepare nano-TiC powders. TiC crystallite sizes and lattice strain were evaluated by using X-ray diffraction based on the Williamson-Hall method. The activation energy, E a, of the as-milled powders was determined by combining differential scanning calorimetry curves with the Kissinger equation. The morphological properties, mechanical properties (hardness and Young's modulus), and the particles size distribution of the nanoceramics were examined using various techniques, including field-emission scanning electron microscope, transmission electron microscopy, nanoindentation, and atomic force microscopy. The milling time had a remarkable effect on the hardness and on Young's modulus, with particle sizes of 95.12, 80.22, and 64.18nm after 15, 20, and 25h of milling, respectively. Furthermore, the results revealed that the decrease in the nano-TiC roughness was associated with an increase in the milling time.

KW - A. Milling

KW - B. Grain size

KW - C. Mechanical properties

KW - D. Carbides

UR - http://www.scopus.com/inward/record.url?scp=85026419495&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85026419495&partnerID=8YFLogxK

U2 - 10.1016/j.ceramint.2017.07.171

DO - 10.1016/j.ceramint.2017.07.171

M3 - Article

JO - Ceramics International

JF - Ceramics International

SN - 0272-8842

ER -