Titanium surface nitriding by sodium amide in molten salts

A crystalline titanium nitride (TiN) layer on titanium foil is achieved using sodium amide (NaNH<sub>2</sub>) as a nitrogen source in LiCl-KCl molten salts. Nanoindentation testing revealed exceptional mechanical properties, with the nitrided surface achieving a hardness of approximately 20.6 GPa, representing more than a four-fold increase compared to the untreated titanium substrate.

Authors

Sheng Dai (ORCID: https://orcid.org/0000-0002-8046-3931)
Siyuan Gao (ORCID: https://orcid.org/0000-0003-2170-4165)
Juntian Fan (ORCID: https://orcid.org/0000-0001-8604-4474)
Tao Wang (ORCID: https://orcid.org/0000-0001-5004-160X)
Yiyu Wang (ORCID: https://orcid.org/0000-0001-7248-0646)

Institutions

Oak Ridge National Laboratory (US)

Publication Details

Journal: Chemical Communications
Published: 2025-01-01
DOI: https://doi.org/10.1039/d5cc03614c
Citations: 2
Primary Topic: MXene and MAX Phase Materials
Type: article
Field-Weighted Citation Impact: 1.04

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article

Titanium surface nitriding by sodium amide in molten salts

Sheng Dai, Siyuan Gao, Juntian Fan, Tao Wang et al.

Jan 1, 2025

2 citations

Chemical Communications

MXene and MAX Phase Materials

1.04

article

Titanium surface nitriding by sodium amide in molten salts

Sheng Dai, Siyuan Gao, Juntian Fan, Tao Wang, Yiyu Wang

January 1, 2025article en

2 citations

Abstract

A crystalline titanium nitride (TiN) layer on titanium foil is achieved using sodium amide (NaNH<sub>2</sub>) as a nitrogen source in LiCl-KCl molten salts. Nanoindentation testing revealed exceptional mechanical properties, with the nitrided surface achieving a hardness of approximately 20.6 GPa, representing more than a four-fold increase compared to the untreated titanium substrate.

Chemical CommunicationsVol. 61(69)

Oak Ridge National Laboratory (US)

Openalex Percentile: Top 23%

MXene and MAX Phase Materials

1.04

DOI Open Access PDF OpenAlex

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