Fast Fabrication and Indentation Behavior of Machinable Ti<sub>2</sub>AlN Ceramic

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Fast Fabrication and Indentation Behavior of Machinable Ti₂AlN Ceramic

更新时间：2025-07-09

- Fast Fabrication and Indentation Behavior of Machinable Ti₂AlN Ceramic
- Vol. 45, Issue 10, Pages: 104-108(2011)
- 作者机构：
  
  1. 西安交通大学材料科学与工程学院,西安,710049
  2. 西安交通大学金属材料强度国家重点实验室,西安,710049
- 作者简介：
- 基金信息：
- DOI：
  CLC： TB321
- Online First：10 October 2011，
  
  Published：2011
- 稿件说明：
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Fast Fabrication and Indentation Behavior of Machinable Ti₂AlN Ceramic[J]. 2011, 45(10): 104-108.
DOI：

Fast Fabrication and Indentation Behavior of Machinable Ti₂AlN Ceramic[J]. 2011, 45(10): 104-108. DOI：

摘要

以TiH

、AlN粉为原料

采用等离子体活化烧结技术制备出单相Ti

AlN块体材料.通过对烧结过程中不同反应温度下产物的物相分析及显微结构观察

研究了Ti

AlN的形成过程.结果表明:在700 ℃以下

TiH

完成脱氢过程; 当温度超过700 ℃后

AlN向脱氢后的Ti粉中扩散

并先后出现Ti

Al、TiN、Ti

AlN及TiAl等中间相; 随着反应不断进行

中间相逐渐向Ti

AlN相转变

从而在1 200 ℃下保温5 min获得了具有明显片层结构的单相Ti

AlN陶瓷.对此单相Ti

AlN陶瓷进行了压痕行为研究

结果表明低硬度以及压痕区内晶粒的微开裂是Ti

AlN陶瓷具有良好可加工性的根本原因.

Abstract

Single-phase Ti

AlN was fabricated with TiH

/AlN powder mixture by plasma activated sintering(PAS)at 1 200 ℃ for 5 min. The phase composition and microstructural evolution during the reaction of TiH

and AlN were characterized by X-ray diffraction(XRD)and scanning electron microscopy(SEM)equipped with an energy dispersive spectroscopy(EDS). It is found that the dehydrogenation of TiH

was rapidly accomplished below 700 ℃

and several intermediate phases

such as TiN

AlN

and TiAl

are identified at the heating stage over 700 ℃

which reveals a reaction pathway towards the formation of Ti

AlN. The indentation behavior test on the single-phase Ti

AlN was conducted

with Vickers method. The results indicate that the low hardness and the microcracks inside the grains below the indentation guarantee the good machinability of the Ti

AlN ceramic.

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Keywords

references

BARSOUM M W. Reactive consolidation of layered-ternary Ti2AlN ceramics by spark plasma sintering of a Ti/AlN powder mixture [J]. J Euro Ceram Soc, 2011, 31(5): 863-868.[本刊相关文献链接]溅射金膜对氧化铝陶瓷纳秒脉冲真空沿面闪络的影响. 西安交通大学学报, 2011, 45(8): 97-101.陶瓷/金属复合装甲抗弹约束效应述评. 西安交通大学学报, 2011, 45(3): 7-15.气体静压轴承用多孔SiC陶瓷的制备及静态性能. 西安交通大学学报, 2011, 45(3): 117-120.Al2O3粉末对ZrO2-TiB2-Al2O3纳米复合陶瓷材料力学性能的影响. 西安交通大学学报, 2011, 45(3): 125-128.不同压力下Ti3SiC2陶瓷的干摩擦磨损性能研究. 西安交通大学学报, 2011, 45(2): 121-124.氧化铝陶瓷注射成型用黏结剂及混料工艺研究. 西安交通大学学报, 2011, 45(1): 127-131.液固混合烧结制备渗流型镍锌铁氧体/钛酸钡复相陶瓷. 西安交通大学学报, 2010, 44(12): 110-113.系列α-Al2O3结构陶瓷的耐冲蚀磨损性能. 西安交通大学学报, 2010, 44(5): 71-74.Si3N4与Si3N4-hBN陶瓷配副在水润滑下的摩擦化学行为. 西安交通大学学报, 2009, 43(9): 75-80.

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Fast Fabrication and Indentation Behavior of Machinable Ti2AlN Ceramic

DOI：

摘要

Abstract

关键词

Keywords

references

Fast Fabrication and Indentation Behavior of Machinable Ti₂AlN Ceramic