Characterization of directionally solidified B4C-TiB 2 and B4C-SiC eutectic composites prepared by floating-zone method

Takaya Akashi; Itaru Gunjishima; Takashi Goto

Characterization of directionally solidified B₄C-TiB ₂ and B₄C-SiC eutectic composites prepared by floating-zone method

Takaya Akashi, Itaru Gunjishima, Takashi Goto

Materials Processing and Characterization Division

Research output: Contribution to journal › Conference article › peer-review

5 Citations (Scopus)

Abstract

B₄C-TiB₂ and B₄C-SiC eutectic composites were prepared by a floating zone method to modify the properties of B ₄C. The B₄C-TiB₂ composites consisted of B ₄C matrix and rod-shaped TiB₂ where the eutectic composition was 25 mol% TiB₂. The c-axis of B₄C matrix tilted ∼20° from the growth direction. Twin boundaries were observed in the B₄C matrix being parallel to the growth direction and (101̄1) plane of B₄C. The (101̄1) plane of B₄C was parallel to the (0001) plane of TiB₂. The B₄C-SiC composite has a lamella structure with SiC and B₄C layers, whose eutectic composition was 53 mol% SiC. The angle between c-axis of B ₄C matrix and growth direction was about 20°. Twin boundaries were observed parallel to the growth direction and (111) plane of the SiC layer. The (101̄2) plane of B₄C was parallel to the (311) plane of SiC.

Original language	English
Pages (from-to)	209-212
Number of pages	4
Journal	Key Engineering Materials
Volume	247
Publication status	Published - 2003 Jan 1
Event	Advanced Ceramics and Composites - Shanghai, China Duration: 2002 Nov 19 → 2002 Nov 22

Keywords

Boron Carbide
Crystal Orientation
Eutectic Composite
Silicon Boride
Titanium Boride

ASJC Scopus subject areas

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

Cite this

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title = "Characterization of directionally solidified B4C-TiB 2 and B4C-SiC eutectic composites prepared by floating-zone method",

abstract = "B4C-TiB2 and B4C-SiC eutectic composites were prepared by a floating zone method to modify the properties of B 4C. The B4C-TiB2 composites consisted of B 4C matrix and rod-shaped TiB2 where the eutectic composition was 25 mol% TiB2. The c-axis of B4C matrix tilted ∼20° from the growth direction. Twin boundaries were observed in the B4C matrix being parallel to the growth direction and (10{\=1}1) plane of B4C. The (10{\=1}1) plane of B4C was parallel to the (0001) plane of TiB2. The B4C-SiC composite has a lamella structure with SiC and B4C layers, whose eutectic composition was 53 mol% SiC. The angle between c-axis of B 4C matrix and growth direction was about 20°. Twin boundaries were observed parallel to the growth direction and (111) plane of the SiC layer. The (10{\=1}2) plane of B4C was parallel to the (311) plane of SiC.",

keywords = "Boron Carbide, Crystal Orientation, Eutectic Composite, Silicon Boride, Titanium Boride",

author = "Takaya Akashi and Itaru Gunjishima and Takashi Goto",

year = "2003",

month = jan,

day = "1",

language = "English",

volume = "247",

pages = "209--212",

journal = "Key Engineering Materials",

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note = "Advanced Ceramics and Composites ; Conference date: 19-11-2002 Through 22-11-2002",

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T1 - Characterization of directionally solidified B4C-TiB 2 and B4C-SiC eutectic composites prepared by floating-zone method

AU - Akashi, Takaya

AU - Gunjishima, Itaru

AU - Goto, Takashi

PY - 2003/1/1

Y1 - 2003/1/1

N2 - B4C-TiB2 and B4C-SiC eutectic composites were prepared by a floating zone method to modify the properties of B 4C. The B4C-TiB2 composites consisted of B 4C matrix and rod-shaped TiB2 where the eutectic composition was 25 mol% TiB2. The c-axis of B4C matrix tilted ∼20° from the growth direction. Twin boundaries were observed in the B4C matrix being parallel to the growth direction and (101̄1) plane of B4C. The (101̄1) plane of B4C was parallel to the (0001) plane of TiB2. The B4C-SiC composite has a lamella structure with SiC and B4C layers, whose eutectic composition was 53 mol% SiC. The angle between c-axis of B 4C matrix and growth direction was about 20°. Twin boundaries were observed parallel to the growth direction and (111) plane of the SiC layer. The (101̄2) plane of B4C was parallel to the (311) plane of SiC.

AB - B4C-TiB2 and B4C-SiC eutectic composites were prepared by a floating zone method to modify the properties of B 4C. The B4C-TiB2 composites consisted of B 4C matrix and rod-shaped TiB2 where the eutectic composition was 25 mol% TiB2. The c-axis of B4C matrix tilted ∼20° from the growth direction. Twin boundaries were observed in the B4C matrix being parallel to the growth direction and (101̄1) plane of B4C. The (101̄1) plane of B4C was parallel to the (0001) plane of TiB2. The B4C-SiC composite has a lamella structure with SiC and B4C layers, whose eutectic composition was 53 mol% SiC. The angle between c-axis of B 4C matrix and growth direction was about 20°. Twin boundaries were observed parallel to the growth direction and (111) plane of the SiC layer. The (101̄2) plane of B4C was parallel to the (311) plane of SiC.

KW - Boron Carbide

KW - Crystal Orientation

KW - Eutectic Composite

KW - Silicon Boride

KW - Titanium Boride

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M3 - Conference article

AN - SCOPUS:0041513070

VL - 247

SP - 209

EP - 212

JO - Key Engineering Materials

JF - Key Engineering Materials

SN - 1013-9826

T2 - Advanced Ceramics and Composites

Y2 - 19 November 2002 through 22 November 2002

ER -

Characterization of directionally solidified B₄C-TiB ₂ and B₄C-SiC eutectic composites prepared by floating-zone method

Abstract

Keywords

ASJC Scopus subject areas

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