Wear properties of nano-Al2O3/UHMWPE composites irradiated by gamma ray against a CoCrMo alloy

被引：38

作者：

Xiong, D. S. ^{[1
]}

Lin, J. M. ^{[1
]}

Fan, D. L. ^{[1
]}

机构：

[1] Nanjing Univ Sci & Technol, Dept Mat Sci & Engn, Nanjing 210094, Peoples R China

来源：

BIOMEDICAL MATERIALS | 2006年 / 1卷 / 03期

关键词：

D O I：

10.1088/1748-6041/1/3/013

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

Nano-Al2O3/ultra- high molecular weight polyethylene (UHMWPE) composites were prepared by hot pressing and then radiated by a gamma ray in doses of 120 kGy, 250 kGy and 500 kGy. The hardness of the composites was tested. The friction and wear properties against a CoCrMo alloy were also tested on a knee simulator under physiological saline solution lubrication. The morphologies of worn surfaces were examined under an optical microscope. The structure of the sample was analyzed by IR and XRD tests. The results showed that the wear rate of UHMWPE decreased when filled with a proper amount of nano-Al2O3, and with an increment of the radiation dose of gamma rays. It was found that filling nano-Al2O3 into UHMWPE can inhibit the effect of oxidation during the radiation procedure.

引用

页码：175 / 179

页数：5

共 15 条

[1]

CHARLESBY A, 1954, NUCLEONICS, V16, P18

[2] Processing of hydroxyapatite reinforced ultrahigh molecular weight polyethylene for biomedical applications [J].

Fang, LM ;

Leng, Y ;

Gao, P .

BIOMATERIALS, 2005, 26 (17) :3471-3478

[3] RADIATION CROSS-LINKING OF POLYMERS - STATUS, CURRENT ISSUES, TRENDS AND CHALLENGES [J].

GEHRING, J ;

ZYBALL, A .

RADIATION PHYSICS AND CHEMISTRY, 1995, 46 (4-6) :931-936

[4]

HOWIE DW, 1993, ORTHOP CLIN N AM, V24, P571

[5]

Kang PH, 2001, RADIAT PHYS CHEM, V60, P79, DOI 10.1016/S0969-806X(00)00333-9

[6] Thermomechanical behavior of virgin and highly crosslinked ultra-high molecular weight polyethylene used in total joint replacements [J].

Kurtz, SM ;

Villarraga, ML ;

Herr, MP ;

Bergström, JS ;

Rimnac, CM ;

Edidin, AA .

BIOMATERIALS, 2002, 23 (17) :3681-3697

[7] CORRELATION BETWEEN THE MODIFICATION OF THE CHEMICAL-STRUCTURE AND THE ELECTRICAL-PROPERTIES OF AR-ION BOMBARDED POLYIMIDE [J].

MARLETTA, G ;

PIGNATARO, S ;

OLIVERI, C .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1989, 39 (1-4) :792-795

[8] IMPROVEMENT OF SURFACE-PROPERTIES OF POLYMERS BY ION-IMPLANTATION [J].

OCHSNER, R ;

KLUGE, A ;

ZECHELMALONN, S ;

GONG, L ;

RYSSEL, H .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1993, 80-1 :1050-1054

[9] Molecular rearrangements in ultra high molecular weight polyethylene after irradiation and long-term storage in air [J].

Premnath, V ;

Bellare, A ;

Merrill, EW ;

Jasty, M ;

Harris, WH .

POLYMER, 1999, 40 (09) :2215-2229

[10] Improved wear resistance of ultra-high molecular weight polyethylene by plasma immersion ion implantation [J].

Shi, W ;

Li, XY ;

Dong, H .

WEAR, 2001, 250 (PART 1) :544-552

← 1 2 →