In situ growth behavior of boron nitride nanotubes on the surface of silicon carbide fibers as hierarchical reinforcements

RSC Advances ◽  
2016 ◽  
Vol 6 (17) ◽  
pp. 14112-14119 ◽  
Author(s):  
Guangxiang Zhu ◽  
Shaoming Dong ◽  
Jianbao Hu ◽  
Yanmei Kan ◽  
Ping He ◽  
...  

BNNTs grown in situ on the surface of silicon carbide fibers via a simplified ball milling, impregnation and annealing method using boron powder as the raw material were synthesized.

RSC Advances ◽  
2016 ◽  
Vol 6 (86) ◽  
pp. 83482-83492 ◽  
Author(s):  
Guangxiang Zhu ◽  
Shaoming Dong ◽  
Dewei Ni ◽  
Chengying Xu ◽  
Dengke Wang

SiCf/BNNTs–SiC hierarchical composites were fabricated via firstly in situ growth of BNNTs on SiC fibers using boron powder as a raw material and then matrix densification by chemical vapor infiltration and polymer impregnation/pyrolysis methods.


2011 ◽  
Vol 37 (3) ◽  
pp. 1063-1072 ◽  
Author(s):  
He Huang ◽  
John T. Fox ◽  
Fred S. Cannon ◽  
Sridhar Komarneni

2019 ◽  
Vol 951 ◽  
pp. 39-44 ◽  
Author(s):  
Akesh Babu Kakarla ◽  
Cin Kong ◽  
Wei Kong ◽  
Ing Kong

This work aimed to investigate the effects of boron nitride nanotubes (BNNTs) on the mechanical and thermal properties of BNNT-polycaprolactone (PCL) nanocomposites. BNNTs were synthesized via co-precipitation and annealing process by using amorphous boron powder as a precursor. PCL-BNNT nanocomposites were prepared by using sonication and thermal curing. Their morphology, thermal and tensile properties were characterized. Morphological observation revealed that BNNTs were arbitrarily and evenly dispersed within the PCL which indicated a good dispersion of the nanotubes in polymer matrix. Both the thermal stability and mechanical properties of neat PCL were enhanced with the addition of BNNTs to polymer matrix, in particular the tensile strength of PLC was increased by 101% with the addition of 5 wt% nanofillers.


Carbon ◽  
2020 ◽  
Vol 158 ◽  
pp. 110-120
Author(s):  
Junsung Hong ◽  
Youngjin Ko ◽  
Kwang-Yeon Cho ◽  
Dong-Geun Shin ◽  
Prabhakar Singh ◽  
...  

1997 ◽  
Vol 3 (S2) ◽  
pp. 733-734
Author(s):  
Mani Gopal

Silicon carbide (SiC) composites are receiving much attention for structural use at high temperatures. One class of composites are those reinforced with SiC fibers. The SiC fibers are coated with boron nitride (BN) which is weakly bonded to the fiber. During fracture, the coating deflects cracks causing pull-out of the fibers (Fig. 1). This process of fiber pull-out consumes energy and increases the toughness of the composite. Although much work has been done on characterizing these materials by SEM, not much has been done using TEM due to difficulties in specimen preparation. The purpose of this study is to characterize these fibers and composites using conventional and analytical TEM.In this study, TEM specimens were prepared by dimpling and ion milling. Careful control of the preparation was needed to ensure the integrity of the SiC-BN interface. Figure 2a is a TEM image of the fiber showing delamination at the SiC-BN interface.


2020 ◽  
Vol 32 ◽  
pp. 101856
Author(s):  
Yuehua Weng ◽  
Guorong Chen ◽  
Fei Dou ◽  
Xianhuan Zhuang ◽  
Qiyu Wang ◽  
...  

2019 ◽  
Vol 6 (8) ◽  
pp. 085026
Author(s):  
Mi Yuan ◽  
Ziye Li ◽  
Yujia Zheng ◽  
Hong Cao ◽  
Jun Xue

2004 ◽  
Vol 85 (11) ◽  
pp. 2858-2860 ◽  
Author(s):  
Guo-Jun Zhang ◽  
Yoshihisa Beppu ◽  
Motohide Ando ◽  
Jian-Feng Yang ◽  
Tatsuki Ohji

2016 ◽  
Vol 4 (48) ◽  
pp. 19107-19115 ◽  
Author(s):  
Li Fu ◽  
Guoxin Chen ◽  
Nan Jiang ◽  
Jinhong Yu ◽  
Cheng-Te Lin ◽  
...  

We report a facile and general approach for the synthesis of boron nitride nanosheet (BNNS)–metal nanoparticle (NP) composites at room temperature without adding any reducing agent.


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