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High hardness in the biocompatible intermetallic compound β-Ti3Au.

Title: High hardness in the biocompatible intermetallic compound β-Ti3Au.
Name(s): Svanidze, Eteri, author
Besara, Tiglet, author
Ozaydin, M Fevsi, author
Tiwary, Chandra Sekhar, author
Wang, Jiakui K, author
Radhakrishnan, Sruthi, author
Mani, Sendurai, author
Xin, Yan, author
Han, Ke, author
Liang, Hong, author
Siegrist, Theo, author
Ajayan, Pulickel M, author
Morosan, E, author
Type of Resource: text
Genre: Journal Article
Date Issued: 2016-07-20
Physical Form: computer
online resource
Extent: 1 online resource
Language(s): English
Abstract/Description: The search for new hard materials is often challenging, but strongly motivated by the vast application potential such materials hold. Ti3Au exhibits high hardness values (about four times those of pure Ti and most steel alloys), reduced coefficient of friction and wear rates, and biocompatibility, all of which are optimal traits for orthopedic, dental, and prosthetic applications. In addition, the ability of this compound to adhere to ceramic parts can reduce both the weight and the cost of medical components. The fourfold increase in the hardness of Ti3Au compared to other Ti-Au alloys and compounds can be attributed to the elevated valence electron density, the reduced bond length, and the pseudogap formation. Understanding the origin of hardness in this intermetallic compound provides an avenue toward designing superior biocompatible, hard materials.
Identifier: FSU_pmch_27453942 (IID), 10.1126/sciadv.1600319 (DOI), PMC4956191 (PMCID), 27453942 (RID), 27453942 (EID), 1600319 (PII)
Keywords: Biocompatible alloys, Coefficient of friction, Elevated electron density, Gold alloys, Hardness, Medical applications, Metals, Pseudogap, Titanium alloys, Titanium gold alloys
Publication Note: This NIH-funded author manuscript originally appeared in PubMed Central at
Subject(s): Biocompatible Materials/chemistry
Crystallography, X-Ray
Dental Alloys/chemistry
Microscopy, Electron, Scanning
Persistent Link to This Record:
Host Institution: FSU
Is Part Of: Science advances.
Issue: iss. 7, vol. 2

Choose the citation style.
Svanidze, E., Besara, T., Ozaydin, M. F., Tiwary, C. S., Wang, J. K., Radhakrishnan, S., … Morosan, E. (2016). High hardness in the biocompatible intermetallic compound β-Ti3Au. Science Advances. Retrieved from