Tissue phase affected fracture toughness of nano-columnar TiB2 + z thin films

C. Fuger; R. Hahn; A. Hirle; T. Wojcik; P. Kutrowatz; F. Bohrn; O. Hunold; P. Polcik; H. Riedl

doi:10.1080/21663831.2023.2204120

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Tissue phase affected fracture toughness of nano-columnar TiB2 + z thin films

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- Tissue phase affected fracture toughness of nano-columnar TiB2 + z thin films
- Tissue phase affected fracture toughness of nano-columnar TiB2 + z thin films
- 材料研究快报（英文） 2023年11卷第8期页码：613-622
- 作者机构：
  
  1. a Christian Doppler Laboratory for Surface Engineering of high-performance Components TU Wien
  2. b Oerlikon Balzers Oerlikon Surface Solutions AG
  3. c Plansee Composite Materials GmbH
  4. a Christian Doppler Laboratory for Surface Engineering of high-performance Components TU Wien Vienna Austria
  5. d Institute of Materials Science and Technology TU Wien
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2023.2204120
  中图分类号：
- 网络首发：2023-04-26，
  
  纸质出版：2023
- 稿件说明：
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C. Fuger, R. Hahn, A. Hirle, 等. Tissue phase affected fracture toughness of nano-columnar TiB2 + z thin films[J]. 材料研究快报（英文）, 2023,11(8):613-622.

C. Fuger, R. Hahn, A. Hirle, et al. Tissue phase affected fracture toughness of nano-columnar TiB2 + z thin films[J]. Materials Research Letters, 2023, 11(8): 613-622.
C. Fuger, R. Hahn, A. Hirle, 等. Tissue phase affected fracture toughness of nano-columnar TiB2 + z thin films[J]. 材料研究快报（英文）, 2023,11(8):613-622. DOI： 10.1080/21663831.2023.2204120.

C. Fuger, R. Hahn, A. Hirle, et al. Tissue phase affected fracture toughness of nano-columnar TiB2 + z thin films[J]. Materials Research Letters, 2023, 11(8): 613-622. DOI： 10.1080/21663831.2023.2204120.

摘要

Abstract

Structural imperfections such as nano-columnar tissue phases constitute a morphological design feature in protective thin films. Especially in the rising group of PVD transition metal diborides

excess Boron is known to form nm-sized B-rich precipitations in-between nano-crystalline domains. Here

we focus on super-stoichiometric TiB

2 + z

thin films

varying the stoichiometry from TiB

2.04

to TiB

4.42

(B: 67–82 at.%). The tissue phase fraction and thickness is mainly governed by the B content and corresponding deposition conditions. A decreasing tissue phase width from ≈ 3–1 nm leads to an increasing critical stress intensity factor K

of ≈ 40%.

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相关机构

College of Materials Science and Engineering Key Laboratory of Advanced Functional Materials Ministry of Education of China Beijing University of Technology

1 Key Laboratory for Light-Weight Materials Nanjing Tech University

2 Herbert Gleiter Institute of Nanoscience Nanjing University of Science and Technology

3 Institute of Mechanics Materials and Civil Engineering UCLouvain

Materials Science & Engineering Institute I Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU)

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