Improved Performance in Monofilament Fiber Reinforced Glass Matrix Composites Through the Use of Fiber Coatings

1989 ◽  
Vol 170 ◽  
Author(s):  
William K. Tredway ◽  
Karl M. Prewo

AbstractThe mechanical performance of glass matrix composites reinforced with large diameter (140 µm) monofilaments has been investigated. Strong interfacial adhesion between uncoated boron monofilaments and the borosilicate glass matrix resulted in composites exhibiting low failure strain and brittle fracture. The use of coated monofilaments improved composite performance considerably by reducing fiber-matrix interfacial adhesion. Auger analysis of the interface indicated that a carbon-rich layer had formed between the monofilament coating and the matrix during composite fabrication

1998 ◽  
Vol 554 ◽  
Author(s):  
Haein Choi-Yim ◽  
Ralf Busch ◽  
William L. Johnson

AbstractBulk metallic glass matrix composites are processed and investigated by X-ray diffraction, DSC, optical microscopy, SEM, microprobe, TEM, and mechanical testing. Ceramics such as SiC, WC, or TiC, and the metals W or Ta are introduced as reinforcements into the metallic melt. The metallic glass matrix remains amorphous after adding up to 30 vol% of particles. The thermal stability of the matrix does not deteriorate after adding the particles. ZrC layers form at the interfaces between the bulk metallic glasses and the WC or SiC particles. Si and W are released into the matrix in which Si enhanced the glass forming ability. The composites are tested in compression and tension experiments. Compressive strain to failure increases by over 300% compared to the unreinforced Zr57Nb5Al10Cu15.4Ni12.6 and the energy to break of the tensile samples increases by over 50% adding 15 vol. % W.


2005 ◽  
Vol 65 (7-8) ◽  
pp. 1276-1283 ◽  
Author(s):  
V. Cannillo ◽  
C. Leonelli ◽  
T. Manfredini ◽  
M. Montorsi ◽  
P. Veronesi ◽  
...  

1998 ◽  
Vol 13 (10) ◽  
pp. 2896-2901 ◽  
Author(s):  
R. B. Dandliker ◽  
R. D. Conner ◽  
W. L. Johnson

The authors describe a technique for melt infiltration casting of composites with a metallic-glass matrix. We made rods 5 cm in length and 7 mm in diameter. The samples were reinforced by continuous metal wires, tungsten powder, or silicon carbide particulate preforms. The most easily processed composites were those reinforced with tungsten and carbon steel continuous wire reinforcement. The Zr41.2Ti13.8Cu12.5Ni10.0Be22.5 matrix was quenched to a glass after infiltrating the reinforcement. We analyzed the microstructure of the composites by x-ray diffraction and scanning electron microscopy. The measured porosity was less than 3% and the matrix was about 97% amorphous material.


2017 ◽  
Vol 23 (6) ◽  
pp. 1216-1222 ◽  
Author(s):  
Woo Chul Kim ◽  
Kang Chul Kim ◽  
Min Young Na ◽  
Seok Hoan Jeong ◽  
Won Tae Kim ◽  
...  

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