Microstructures and Mechanical Properties of Powder Metallurgy Pure Ti Composite Reinforced with Carbon Nanotubes

Threrujirapapong, Thotsaphon; Kondoh, Katsuyoshi; Imai, Hisashi; Umeda, Junko; Fugetsu, Bunshi

doi:https://doi.org/10.18910/6033

Microstructures and Mechanical Properties of Powder Metallurgy Pure Ti Composite Reinforced with Carbon Nanotubes

Threrujirapapong, Thotsaphon; Kondoh, Katsuyoshi; Imai, Hisashi et al.

Transactions of JWRI, 2008, 37(1), 57-61

Number of Access:454（2025-08-29 01:37 Counts）

Identifier to cite or link to this item: https://doi.org/10.18910/6033

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Title	Microstructures and Mechanical Properties of Powder Metallurgy Pure Ti Composite Reinforced with Carbon Nanotubes
Creator	CreatorName Threrujirapapong, Thotsaphon
	NRID 1000050345138 1000050345138 researchmap permalink kondoh kondoh Scopus Author ID 9942942300 9942942300 CreatorName Kondoh, Katsuyoshi
	NRID 1000030452379 1000030452379 CreatorName Imai, Hisashi
	NRID 1000050345162 1000050345162 researchmap permalink umeda umeda Scopus Author ID 23478776500 23478776500 ORCID 0000-0001-8678-9708 0000-0001-8678-9708 CreatorName Umeda, Junko
	NRID 1000040281844 1000040281844 CreatorName Fugetsu, Bunshi
Subject	Pure Ti
	Carbon Nanotube
	Hot Extrusion
	TiC
Abstract	Powder metallurgy (P/M) titanium matrix composite (TMC) reinforced with carbon nanotubes (CNTs) was prepared by spark plasma sintering (SPS) and a subsequent hot extrusion process. The un-bundled CNTs were coated on the pure titanium powder surface by the zwitterionic surfactant solution of the wet process. The microstructure and mechanical properties of P/M pure titanium materials and those reinforced with CNTs were evaluated. The microstructure and synthesized compound in solid-state sintering were investigated by optical and scanning electron microscopy equipped with an EDS analyzer. The mechanical properties of TMC were significantly improved by the addition of CNTs. For example, when employing fine pure titanium powder as raw material, P/M titanium extruded material with 0.37mass% showed excellent tensile properties such as 742 MPa UTS, 592 MPa YS and 26% elongation compared to P/M wrought titanium with no CNT having 585 MPa UTS, 423 MPa YS and 30% elongation. Fractured surfaces of tensile specimens were analyzed by scanning electron microscope, and revealed a uniform distribution of CNTs and TiC particles of the composite.
Publisher	大阪大学接合科学研究所
	オオサカダイガクセツゴウカガクケンキュウジョ
	Joining and Welding Research Institute, Osaka University
Source Title	Transactions of JWRI
Volume (Issue)	37(1)
Page	57-61
Date of Issued	2008-07
Language	English
Handle URL	https://hdl.handle.net/11094/6033
DOI	https://doi.org/10.18910/6033
PISSN	03874508
NCID	AA00867058
Access Rights	open access
oaire:version	Version of Record
Category	紀要論文 Departmental Bulletin Paper
Category	Transactions of JWRI / Vol.37 No.1 (2008-07)

Resource Type	departmental bulletin paper
Local Type	Departmental Bulletin Paper
DCMI Type	Text
DCTERMS.bibliographicCitation	Transactions of JWRI. 2008, 37(1), p. 57-61
DC.title	Microstructures and Mechanical Properties of Powder Metallurgy Pure Ti Composite Reinforced with Carbon Nanotubes
DC.creator	Threrujirapapong, Thotsaphon
	Kondoh, Katsuyoshi
	Imai, Hisashi
	Umeda, Junko
	Fugetsu, Bunshi
DC.publisher	大阪大学接合科学研究所
	オオサカダイガクセツゴウカガクケンキュウジョ
	Joining and Welding Research Institute, Osaka University
DC.language' scheme='DCTERMS.RFC1766	English
DC.type' scheme='DCTERMS.DCMIType	Text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2008-07
DC.subject	Pure Ti
	Carbon Nanotube
	Hot Extrusion
	TiC
DCTERMS.abstract	Powder metallurgy (P/M) titanium matrix composite (TMC) reinforced with carbon nanotubes (CNTs) was prepared by spark plasma sintering (SPS) and a subsequent hot extrusion process. The un-bundled CNTs were coated on the pure titanium powder surface by the zwitterionic surfactant solution of the wet process. The microstructure and mechanical properties of P/M pure titanium materials and those reinforced with CNTs were evaluated. The microstructure and synthesized compound in solid-state sintering were investigated by optical and scanning electron microscopy equipped with an EDS analyzer. The mechanical properties of TMC were significantly improved by the addition of CNTs. For example, when employing fine pure titanium powder as raw material, P/M titanium extruded material with 0.37mass% showed excellent tensile properties such as 742 MPa UTS, 592 MPa YS and 26% elongation compared to P/M wrought titanium with no CNT having 585 MPa UTS, 423 MPa YS and 30% elongation. Fractured surfaces of tensile specimens were analyzed by scanning electron microscope, and revealed a uniform distribution of CNTs and TiC particles of the composite.
DC.identifier	10.18910/6033
DC.format	6033
citation_title	Microstructures and Mechanical Properties of Powder Metallurgy Pure Ti Composite Reinforced with Carbon Nanotubes
citation_author	Threrujirapapong, Thotsaphon
	Kondoh, Katsuyoshi
	Imai, Hisashi
	Umeda, Junko
	Fugetsu, Bunshi
citation_publisher	大阪大学接合科学研究所
citation_language	English
citation_date	2008-07
citation_journal_title	Transactions of JWRI
citation_volume	37
citation_issue	1
citation_firstpage	57
citation_lastpage	61
citation_public_url	https://hdl.handle.net/11094/6033
citation_doi_detail	10.18910/6033
citation_doi	https://doi.org/10.18910/6033

Microstructures and Mechanical Properties of Powder Metallurgy Pure Ti Composite Reinforced with Carbon Nanotubes

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