Evolution of Nanocrystalline TiBCN Structure with Temperature and Mechanism

Xiangyang Chen; Shengli Ma; Paul K. Chu

Evolution of Nanocrystalline TiBCN Structure with Temperature and Mechanism

Xiangyang Chen
, Shengli Ma^*
, Paul K. Chu

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

Abstract

Evolution of the TiB_0.71C_3.32N_0.79 quaternary nanocomposite structure at 600, 700, 800, 900, and 1000 degrees C is investigated by high-resolution transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectrometry, and micro-hardness indentation. The nc-Ti(C,N) nanocrystallites exhibit the (200) preferential orientation and the amorphous carbon (a-C) phase gradually transforms into the crystallite graphite phase as the temperature is increased. At 1000 degrees C, the nc-Ti(C,N) nanocrystallites increase to a size of 13 nm but the microhardness diminishes to 18-19 GPa. The corresponding mechanism is discussed.

Original language	English
Pages (from-to)	341-343
Journal	Rare Metal Materials and Engineering
Volume	41
Issue number	Suppl. 1
Publication status	Published - Feb 2012

Research Keywords

nanocomposites
structure
TiBCN

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title = "Evolution of Nanocrystalline TiBCN Structure with Temperature and Mechanism",

abstract = "Evolution of the TiB0.71C3.32N0.79 quaternary nanocomposite structure at 600, 700, 800, 900, and 1000 degrees C is investigated by high-resolution transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectrometry, and micro-hardness indentation. The nc-Ti(C,N) nanocrystallites exhibit the (200) preferential orientation and the amorphous carbon (a-C) phase gradually transforms into the crystallite graphite phase as the temperature is increased. At 1000 degrees C, the nc-Ti(C,N) nanocrystallites increase to a size of 13 nm but the microhardness diminishes to 18-19 GPa. The corresponding mechanism is discussed.",

keywords = "nanocomposites, structure, TiBCN",

author = "Xiangyang Chen and Shengli Ma and Chu, \{Paul K.\}",

year = "2012",

month = feb,

language = "English",

volume = "41",

pages = "341--343",

journal = "Rare Metal Materials and Engineering",

issn = "1002-185X",

publisher = "NORTHWEST INST NONFERROUS METAL RESEARCH",

number = "Suppl. 1",

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TY - JOUR

T1 - Evolution of Nanocrystalline TiBCN Structure with Temperature and Mechanism

AU - Chen, Xiangyang

AU - Ma, Shengli

AU - Chu, Paul K.

PY - 2012/2

Y1 - 2012/2

N2 - Evolution of the TiB0.71C3.32N0.79 quaternary nanocomposite structure at 600, 700, 800, 900, and 1000 degrees C is investigated by high-resolution transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectrometry, and micro-hardness indentation. The nc-Ti(C,N) nanocrystallites exhibit the (200) preferential orientation and the amorphous carbon (a-C) phase gradually transforms into the crystallite graphite phase as the temperature is increased. At 1000 degrees C, the nc-Ti(C,N) nanocrystallites increase to a size of 13 nm but the microhardness diminishes to 18-19 GPa. The corresponding mechanism is discussed.

AB - Evolution of the TiB0.71C3.32N0.79 quaternary nanocomposite structure at 600, 700, 800, 900, and 1000 degrees C is investigated by high-resolution transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectrometry, and micro-hardness indentation. The nc-Ti(C,N) nanocrystallites exhibit the (200) preferential orientation and the amorphous carbon (a-C) phase gradually transforms into the crystallite graphite phase as the temperature is increased. At 1000 degrees C, the nc-Ti(C,N) nanocrystallites increase to a size of 13 nm but the microhardness diminishes to 18-19 GPa. The corresponding mechanism is discussed.

KW - nanocomposites

KW - structure

KW - TiBCN

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M3 - RGC 21 - Publication in refereed journal

SN - 1002-185X

VL - 41

SP - 341

EP - 343

JO - Rare Metal Materials and Engineering

JF - Rare Metal Materials and Engineering

IS - Suppl. 1

ER -

Evolution of Nanocrystalline TiBCN Structure with Temperature and Mechanism

Abstract

Research Keywords

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