Study on Microstructures and Mechanical Properties of Foam Titanium Carbide Ceramics Fabricated by Reaction Sintering Process

Journal Article · Sun Jul 15 04:00:00 EDT 2018 · Journal of Materials Engineering and Performance

DOI:https://doi.org/10.1007/S11665-018-3404-9· OSTI ID:22860418

Ma, Yana; Bao, Chonggao; Chen, Jie; Song, Suocheng; Han, Longhao ^[1]

---

1. Xi’an Jiaotong University, State Key Laboratory for Mechanical Behavior of Materials (China)

Foam titanium carbide (TiC) ceramics with a three-dimensional network structure were fabricated by the reaction sintering process, in which polyurethane foam was taken as the template, and TiO{sub 2} and phenolic resin were used as the reactants. Phase, microstructures and fracture morphologies of foam TiC ceramics were characterized by x-ray diffraction (XRD) and scanning electron microscopy (SEM), respectively. The results show that when the mass ratios of phenolic resin and TiO{sub 2} (F/T) are (0.8-1.2): 1, foam TiC ceramics with pure TiC phase can be formed. As the F/T ratios increase, crystal lattice parameters of fabricated foam TiC ceramics become bigger. When the value of F/T decreases from 1.2 to 0.8, grain size of TiC grows larger and microstructures get denser; meanwhile, the compressive strength increases from 0.10 to 1.05 MPa. Additionally, either raising the sintering temperatures or extending holding time can facilitate the completion of the reaction process and increase the compressive strength.

• OSTI ID: 22860418
• Journal Information: Journal of Materials Engineering and Performance, Journal Name: Journal of Materials Engineering and Performance Journal Issue: 7 Vol. 27; ISSN 1059-9495; ISSN JMEPEG
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CERAMICS
COMPRESSION STRENGTH
FOAMS
FRACTURES
GRAIN SIZE
LATTICE PARAMETERS
SCANNING ELECTRON MICROSCOPY
SINTERING
THREE-DIMENSIONAL LATTICES
TITANIUM CARBIDES
TITANIUM OXIDES
X-RAY DIFFRACTION