Tribological and neutron radiation properties of boron nitride nanotubes reinforced titanium composites under lunar environment

被引：25
|
作者：
Bacca, Nicole [1 ,2 ]
Zhang, Cheng [1 ]
Paul, Tanaji [1 ]
Sukumaran, Abhijith Kunneparambil [1 ]
John, Denny [1 ]
Rengifo, Sara [3 ]
Park, Cheol [4 ]
Chu, Sang-Hyon [5 ]
Mazurkivich, Matthew [3 ]
Scott, William [6 ]
Agarwal, Arvind [1 ]
机构：
[1] Florida Int Univ, Dept Mech & Mat Engn, Plasma Forming Lab, 10555 West Flagler St, Miami, FL 33174 USA
[2] Boston Univ, Dept Mech Engn, 110 Cummington Mall, Boston, MA 02215 USA
[3] NASA MSFC, Mat Test Chem & Contaminat Control Branch, Huntsville, AL 35808 USA
[4] NASA, Langley Res Ctr, Adv Mat & Proc Branch, Hampton, VA 23681 USA
[5] Natl Inst Aerosp, 100 Explorat Way, Hampton, VA 23666 USA
[6] ERC Inc, Jacobs Space Explorat Grp, Huntsville, AL 35806 USA
来源：
JOURNAL OF MATERIALS RESEARCH | 2022年 / 37卷 / 24期
关键词：
Boron nitride nanotube; Titanium; Lunar regolith; Wear; Radiation shielding; METAL-MATRIX COMPOSITES; PLASTICITY PARAMETERS; EXTRACTION;
D O I：
10.1557/s43578-022-00708-w
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The present study reports the tribological behavior, and radiation shielding performance of a multifunctional boron nitride nanotube (BNNT) reinforced titanium metal matrix composite (MMC) for applications in lunar exploration. BNNT-Ti MMCs showed 10.2 and 25.5% improvements in wear volume loss compared to pristine Ti samples with and without lunar simulant, respectively. For neutron radiation shielding evaluation, an additional set of samples with similar compositions was sintered at 750 degrees C. The decreased sintering temperature from 950 to 750 degrees C prevented BNNTs from interfacial reactions with the Ti matrix during sintering. The highest neutron attenuation was observed in BNNT-Ti MMC sintered at 750 degrees C, followed by the one sintered at 950 degrees C and pristine Ti sample. Maximum 45 and 50% improvements in linear and mass absorption coefficient were shown, respectively. This study proves that adding BNNTs to the Ti alloy matrix greatly enhanced the wear resistance, yield strength, and radiation shielding performance.
引用
收藏
页码：4582 / 4593
页数：12
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