Hot-pressing and characterization of TiB2-SiC composites with different amounts of BN additive

被引：8

作者：

Yang, Xiaowei ^{[1
]}

Chen, Jian ^{[1
]}

Xing, Rong ^{[1
]}

Babapoor, Aziz ^{[2
]}

机构：

[1] Yancheng Teachers Univ, Coll Appl Chem & Environm Engn, Inst New Energy Chem Storage & Power Source, Yancheng 224007, Jiangsu, Peoples R China

[2] Univ Mohaghegh Ardabili, Dept Chem Engn, Ardebil, Iran

来源：

CERAMICS INTERNATIONAL | 2021年 / 47卷 / 12期

基金：

中国国家自然科学基金;

关键词：

TiB2; SiC; hBN; Microstructure; Hot-pressing; MICROSTRUCTURAL CHARACTERIZATION; ZRB2-BASED COMPOSITES; MECHANICAL-PROPERTIES; SPARK; CERAMICS; DENSIFICATION; GRAPHENE; TIN; NANOCOMPOSITES; GRAPHITE;

D O I：

10.1016/j.ceramint.2021.02.236

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

This research aimed to study the influence of different amounts of hBN additive on the mechanical properties and microstructure of TiB2-15 vol% SiC samples. All ceramics, containing 0, 3.5, and 7 vol% hBN, were sintered at 2000 degrees C using a hot-pressing route and reached their near full densities. Thanks to two different chemical reactions among the SiC reinforcement and the TiB2 surface oxides (B2O3 and TiO2), the in-situ phases of SiO2 and TiC were generated over the sintering process. The intergranular mode was identified as the predominant fracture type in all three composite samples. The hBN additive could contribute to grain refining of composites so that the sample containing 7 vol% hBN reached the finest microstructure. Finally, the highest Vickers hardness of 25.4 HV0.5 kg and flexural strength of 776 MPa were attained for the TiB2-SiC and TiB2-SiC-7 vol% hBN samples, respectively.

引用

页码：16652 / 16660

页数：9

共 93 条

[1] Co-reinforcing of ZrB2-SiC ceramics with optimized ZrC to Cf ratio [J].

Adibpur, Farhad ;

Tayebifard, Seyed Ali ;

Zakeri, Mohammad ;

Asl, Mehdi Shahedi .

CERAMICS INTERNATIONAL, 2020, 46 (14) :22661-22673

[2] Spark plasma sintering of quadruplet ZrB2-SiC-ZrC-Cf composites [J].

Adibpur, Farhad ;

Tayebifard, Seyed Ali ;

Zakeri, Mohammad ;

Asl, Mehdi Shahedi .

CERAMICS INTERNATIONAL, 2020, 46 (01) :156-164

[3] Structural characterization of YSZ/Al2O3 nanostructured composite coating fabricated by electrophoretic deposition and reaction bonding [J].

Ahmadi, Mojtaba ;

Aghajani, Hossein .

CERAMICS INTERNATIONAL, 2018, 44 (06) :5988-5995

[4] Suspension characterization and electrophoretic deposition of Yttria-stabilized Zirconia nanoparticles on an iron-nickel based superalloy [J].

Ahmadi, Mojtaba ;

Aghajani, Hossein .

CERAMICS INTERNATIONAL, 2017, 43 (09) :7321-7328

[5] Synergistic influence of SiC and C3N4 reinforcements on the characteristics of ZrB2-based composites [J].

Ahmadi, Zohre ;

Zakeri, Mohammad ;

Farvizi, Mohammad ;

Habibi-Yangjeh, Aziz ;

Asadzadeh-Khaneghah, Soheila ;

Shahedi Asl, Mehdi .

JOURNAL OF ASIAN CERAMIC SOCIETIES, 2021, 9 (01) :30-39

[6] Phase transformation in spark plasma sintered ZrB2-V-C composites at different temperatures [J].

Ahmadi, Zohre ;

Nayebi, Behzad ;

Parvizi, Soroush ;

Asl, Mehdi Shahedi ;

Shokouhimehr, Mohammadreza .

CERAMICS INTERNATIONAL, 2020, 46 (07) :9415-9420

[7] A novel ZrB2-C3N4 composite with improved mechanical properties [J].

Ahmadi, Zohre ;

Zakeri, Mohammad ;

Habibi-Yangjeh, Aziz ;

Asl, Mehdi Shahedi .

CERAMICS INTERNATIONAL, 2019, 45 (17) :21512-21519

[8] Densification improvement of spark plasma sintered TiB2-based composites with micron-, submicron- and nano-sized SiC particulates [J].

Ahmadi, Zohre ;

Nayebi, Behzad ;

Asl, Mehdi Shahedi ;

Farahbakhsh, Iman ;

Balak, Zohre .

CERAMICS INTERNATIONAL, 2018, 44 (10) :11431-11437

[9] Milling time and sintering parameters optimization to fabricate ZrB2-30 vol% SiC composite with highest thermal shock resistance [J].

Akhlaghi, Nima ;

Balak, Zohre ;

Birgani, Ebrahim Najafi .

MATERIALS RESEARCH EXPRESS, 2019, 6 (05)

[10] Microstructure, mechanical properties, and oxidation behavior of hot-pressed ZrB2-SiC-B4C composites [J].

Alvari, Masoumeh Dehghanzadeh ;

Kakroudi, Mahdi Ghassemi ;

Salahimehr, Behnam ;

Alaghmandfard, Reza ;

Asl, Mehdi Shahedi ;

Mohammadi, Mohsen .

CERAMICS INTERNATIONAL, 2021, 47 (07) :9627-9634

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