Study on the macro- and micro-mechanical properties of quartz fiber reinforced polyimide resin matrix composite after thermal aging

Chen, Xiaofei; Liu, Haitao; Jiang, Ru; Bai, Huizhen

doi:10.1016/j.compstruct.2022.115666

Cited by 12 publications

(4 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The fracture strength and work of fracture of the oxide/oxide composites can be determined by the following equations [ 44–47 ]

σ_{normalu} = σ_{fu}^{*} V_{normalf} (1 - \frac{σ_{fu}^{*} r_{normalf} false(1 - \sqrt{\frac{2 τ}{σ_{fu}^{*} r_{normalf}^{2} \ln false(Φ_{max} / V_{normalf} false)}} false)}{l τ})

W_{normalc} = V_{normalf} l_{normalc} σ_{fu}^{*} {\frac{σ_{f u}^{*}}{2 E_{normalf}} [1 + \frac{r_{normalf}}{l_{normalc}} \ln (\frac{Φ_{max}}{V_{normalf}})] + \frac{1}{8}}

where V f is the fiber volume fraction, l is the length of as‐received fiber, and Φ max is the distribution parameter of fiber. Based on the assumption that other parameters keep constant, the fracture strength and fracture toughness of the oxide/oxide composite are affected mainly by the length of pullout single fiber.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Effect of Sintering Temperature on Mechanical Behaviors of an Oxide Fiber‐Reinforced Oxide Matrix Composite

et al. 2023

Self Cite

View full text Add to dashboard Cite

Sintering temperature can significantly affect the mechanical behaviors of ceramic matrix composites. Herein, the effect of sintering temperature (900–1200 °C) on micro‐ and macromechanical properties of an oxide fiber‐reinforced oxide matrix (oxide/oxide) composite is investigated. The crack propagation path is predicted by the He–Hutchinson model. Results show that the elastic modulus of matrix and interfacial shear strength increase with sintering temperature. The propagating crack converts from deflection along the interface to direct penetration into the matrix at 1200 °C. With increase of the sintering temperature, the flexural strength and interlaminar shear strength monotonically increase, while the fracture toughness increases and then decreases at 1200 °C. A good balance between the fracture strength and fracture toughness is achieved on the 1100 °C sintered composite, which possesses a high flexural strength of ≈276.7 MPa, a high interlaminar shear strength of ≈17.2 MPa, and a high fracture toughness of ≈13.9 MPa m1/2. The study offers a new sight in deep understand of the preparation and applicability of oxide/oxide composite at high temperatures.

show abstract

“…The fracture strength and work of fracture of the oxide/oxide composites can be determined by the following equations [ 44–47 ]

σ_{normalu} = σ_{fu}^{*} V_{normalf} (1 - \frac{σ_{fu}^{*} r_{normalf} false(1 - \sqrt{\frac{2 τ}{σ_{fu}^{*} r_{normalf}^{2} \ln false(Φ_{max} / V_{normalf} false)}} false)}{l τ})

W_{normalc} = V_{normalf} l_{normalc} σ_{fu}^{*} {\frac{σ_{f u}^{*}}{2 E_{normalf}} [1 + \frac{r_{normalf}}{l_{normalc}} \ln (\frac{Φ_{max}}{V_{normalf}})] + \frac{1}{8}}

Section: Resultsmentioning

confidence: 99%

“…The fracture strength and work of fracture of the oxide/oxide composites can be determined by the following equations [44][45][46][47]…”

Section: Correlation Between Micro-and Macromechanical Propertiesmentioning

confidence: 99%

Effect of Sintering Temperature on Mechanical Behaviors of an Oxide Fiber‐Reinforced Oxide Matrix Composite

et al. 2023

Self Cite

View full text Add to dashboard Cite

show abstract

“…According to the reports, the incorporation of nanographite (NG) into PI via hot pressing has led to significant improvement in the tribological performance of NG/PI composites compared to pure PI (Wan et al , 2022). Another advantage of using hot pressing to prepare PI composites is that the various requirements for fillers are relatively low and composites with various fillers can be prepared, such as quartz fiber/PI composite materials (Chen et al , 2022) and MoS 2 /PI composite materials (Hu et al , 2023). Thus, the hot-pressing method finds broad applications in diverse scientific and technological domains.…”

Section: Preparation Of Polyimide and Its Compositesmentioning

confidence: 99%

Review of tribological properties of polyimide-based composite materials

Yan

Zhang

Wang

2023

ILT

View full text Add to dashboard Cite

Purpose As a high-performance engineering plastic, polyimide (PI) is widely used in the aerospace, electronics and automotive industries. This paper aims to review the latest progress in the tribological properties of PI-based composites, especially the effects of nanofiller selection, composite structure design and material modification on the tribological and mechanical properties of PI-matrix composites. Design/methodology/approach The preparation technology of PI and its composites is introduced and the effects of carbon nanotubes (CNTs), carbon fibers (CFs), graphene and its derivatives on the mechanical and tribological properties of PI-based composites are discussed. The effects of different nanofillers on tensile strength, tensile modulus, coefficient of friction and wear rate of PI-based composites are compared. Findings CNTs can serve as the strengthening and lubricating phase of PI, whereas CFs can significantly enhance the mechanical properties of the matrix. Two-dimensional graphene and its derivatives have a high modulus of elasticity and self-lubricating properties, making them ideal nanofillers to improve the lubrication performance of PI. In addition, copolymerization can improve the fracture toughness and impact resistance of PI, thereby enhancing its mechanical properties. Originality/value The mechanical and tribological properties of PI matrix composites vary depending on the nanofiller. Compared with nanofibers and nanoparticles, layered reinforcements can better improve the friction properties of PI composites. The synergistic effect of different composite fillers will become an important research system in the field of tribology in the future.

show abstract

“…Currently, the most widely used thermosetting PIs include nadic anhydride-terminated PIs, nitrile-terminated PIs and phenylethynyl-terminated PIs. [11][12][13][14][15][16][17][18] Aircrafts inevitably face the threat of lightning weather during flight. Lightning and thunder are natural discharge phenomenon, [19][20][21] which contain extremely high energy and can pose a great threat to human safety and the normal operation of equipment.…”

Section: Introductionmentioning

confidence: 99%

Study on properties influence of carbon fiber reinforced polyimide composites via surface modification using metal mesh

et al. 2022

View full text Add to dashboard Cite

In this work, carbon fiber reinforced polyimide (CF/PI) composites via surface modification using metal mesh were obtained. The interfacial adhesion performance of metal mesh and composites, mechanical properties and electrical properties of composites were characterized. The results revealed that introducing metal mesh on CF/PI composites surface obviously decreased the resistivity of composites, which was of great significance for lightning protection.For the mechanical properties, the short-beam shear strength and flexural properties of modified composites slightly declined, and the failure mode of samples did not change significantly. From microscopic failure morphology and finite element analysis, it can be illustrated that the crack generated from edge may lead to the mechanical properties changes of metal mesh modified sample. Based on practical application condition, the performance change rule of modified composite system after thermal treatment was also reported. This study enables a surface modification thought as a promising way for the application of high temperature resistant CF/PI composite system.

show abstract

Study on the macro- and micro-mechanical properties of quartz fiber reinforced polyimide resin matrix composite after thermal aging

Cited by 12 publications

References 26 publications

Effect of Sintering Temperature on Mechanical Behaviors of an Oxide Fiber‐Reinforced Oxide Matrix Composite

Effect of Sintering Temperature on Mechanical Behaviors of an Oxide Fiber‐Reinforced Oxide Matrix Composite

Review of tribological properties of polyimide-based composite materials

Study on properties influence of carbon fiber reinforced polyimide composites via surface modification using metal mesh

Contact Info

Product

Resources

About