Strength model for composite ceramics with nano-interface and micro-interface

Du, Zhihong; Ni, Xinhua; Liu, Xiequan; Cheng, Zhaogang; Fu, Yunwei; Yu, Junzhi

doi:10.1080/09276440.2018.1504194

Cited by 5 publications

(2 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The higher value of 60SiC is explained by its fine-grained and homogeneous structure, whereas the lower values of 80SiC and 40SiC composites can be related to the higher porosity of these materials. Moreover, because of a more homogeneous structure and smaller grain size, there is a high number of strong SiC-TiC and TiB 2 -TiC interactions, which also leads to improved strength values and compensates for the possible reduction due to the no or little interaction between SiC and TiB 2 particles [5,71,72]. On the other hand, the samples obtained by PS at 2100 • C and 2220 • C have the same tendency as the SPSed composites but with lower strength values in the range of 40-70%.…”

Section: Mechanical Property Characterizationmentioning

confidence: 99%

Processing and Characterization of Spark Plasma Sintered SiC-TiB2-TiC Powders

et al. 2022

View full text Add to dashboard Cite

SiC-TiB2-TiC composites with matrices consisting of semiconductor material (SiC), conductive materials (TiB2-TiC), or their combination were fabricated by spark plasma sintering (SPS) at 2000 °C in a vacuum under a pressure of 80 MPa for 3 min. The composition and microstructure of the obtained composites were studied by X-ray diffraction and a scanning electron microscope equipped with an energy-dispersive detector. The flexural strength, Vickers hardness, and fracture toughness of SPSed samples were determined. Based on the observations in this work, three variations of the sintering process were proposed with different matrix compositions. The dense (99.7%) 60SiC-25TiB2-15TiC vol.% sintered ceramic composites exhibited the highest strength and hardness values of the studied composites, as well as a fracture toughness of 6.2 MPa·m1/2.

show abstract

Section: Mechanical Property Characterizationmentioning

confidence: 99%

Processing and Characterization of Spark Plasma Sintered SiC-TiB2-TiC Powders

et al. 2022

View full text Add to dashboard Cite

show abstract

“…The nano-technological field has grown rapidly ever since, with nanocomposites also being invented [4][5][6]. The nanocomposites are composites comprising a matrix filled with nanoparticles [7,8]. From existing research, adding a certain content of nanoparticles clearly improves the composite's electrical properties; these new composites meet the needs of insulation [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Study of the Electrical Conductivity Characteristics of Micro and Nano-ZnO/LDPE Composites

2022

View full text Add to dashboard Cite

Polyethylene, a thermoplastic resin made by ethylene polymerization, is widely used in electrical insulation. In this study, low-density polyethylene (LDPE) is used as a matrix with micro- and nano-ZnO particles as a filler to produce different proportions of micro- and nano-ZnO composites by melt blending. These samples are characterized by Polarized Light Microscopy (PLM) and FTIR tests, with their conductance measured under different field strengths. The current density vs. electric field strength (J-E) curve of micro- and nano-ZnO composites under different field strengths are measured and analyzed. The J-E curves of different composites at different temperatures are measured to explore conductance with temperature. The results of these tests showed that nano-ZnO composites successfully suppressed conductivity at elevated temperatures and electric field strengths, while micro-ZnO composites increased the conductivity relative to pure LDPE.

show abstract