Thermophysical properties of hybrid silica phenolic ablative composite: Theoretical and experimental analysis

J., Aravind Jithin A.; Panigrahi, S.K.; Sasikumar, P.; Rao, Shreedhar K.; K., Shabeeb Ali T.; Krishnakumar, G

doi:10.1002/pc.26766

Cited by 6 publications

(5 citation statements)

References 63 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The metal‐composite TPS is generally composed of rigid metal carriers and ablative materials bonded together 2–4 . Organic polymers are widely used in aerospace fields as ablative thermal resistant materials due to their low‐thermal conductivity and high‐carbon formation rate 5,6 . Compared with traditional TPS consisting of heat‐resistant coatings on metal surfaces, the metal‐composite TPS has advantages in thermal insulation performance and weight control 7 .…”

Section: Introductionmentioning

confidence: 99%

“…[2][3][4] Organic polymers are widely used in aerospace fields as ablative thermal resistant materials due to their low-thermal conductivity and high-carbon formation rate. 5,6 Compared with traditional TPS consisting of heat-resistant coatings on metal surfaces, the metal-composite TPS has advantages in thermal insulation performance and weight control. 7 However, due to the material property differences, including mechanical and thermal physical properties between ablative material and metal, the failure mode of TPS at different temperatures is very complex.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Mechanical performance of adhesively bonded carbon fiber reinforced boron‐modified phenolic resin plastic‐titanium single‐lap joints at high temperature

Ma,

Han,

Ying

et al. 2023

Polymer Composites

View full text Add to dashboard Cite

This article characterized the mechanical performance and failure mode of single‐lap joints (SLJs) of carbon fiber reinforced boron‐modified phenolic resin plastic (CF/BPR) and TC4 titanium alloy by quasi‐static tensile tests at four temperatures (25, 100, 175, and 250°C). The experimental results indicated that the shear strength of SLJs is 10.8 MPa at 25°C, which experiences monotonic drop to 80%, 42.6%, and 18.5% with temperature increase from 100 to 175°C, and to 250°C, respectively. Additionally, there was a transformation in the failure mode from composite material failure to cohesive failure in the adhesive along with the temperature increase. The intralaminar elasticities of CF/BPR were predicted using representative volume element (RVE), and the mechanical properties of three types of bondlines (i.e., the interlamination, interface of CF/BPR and the epoxy adhesive layer) were determined by both experiment and predictive methods. A finite element model taking into account the intralaminar damage of CF/BPR and the cohesive behavior of three bondlines was established. The simulated results showed good consistency with the experimental data for failure prediction, and the mechanical performance and damage propagation of SLJs at different temperatures were discussed. This research provides reference for the design and manufacture of high‐temperature bonded structures.Highlights RVE and degradation factor methods evaluate the elasticity of composite material. Four types of damage behaviors are considered in the established FE model. The SLJs exhibit single or multiple failure modes at different temperatures. The mechanical properties of SLJs severely degraded with increasing temperature.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Mechanical performance of adhesively bonded carbon fiber reinforced boron‐modified phenolic resin plastic‐titanium single‐lap joints at high temperature

Ma,

Han,

Ying

et al. 2023

Polymer Composites

View full text Add to dashboard Cite

show abstract

“…The ablation mechanism of silica–phenolic materials is also extensively studied for high-temperature TPS applications [ 17 , 18 , 19 , 20 , 21 ], and two known examples of silica–phenolic ablators used for spacecraft heat shields are Aleastrasil [ 22 ] for the European Space Agency (ESA)’s Atmospheric Reentry Demonstrator (ARD) and AQ60/I for the ESA’s Huygens mission to Titan, a moon of Saturn [ 23 ].…”

Section: Introductionmentioning

confidence: 99%

Arc-Jet Tests of Carbon–Phenolic-Based Ablative Materials for Spacecraft Heat Shield Applications

2023

View full text Add to dashboard Cite

We developed and tested two carbon–phenolic-based ablators for future Korean spacecraft heat shield applications. The ablators are developed with two layers: an outer recession layer, fabricated from carbon–phenolic material, and an inner insulating layer, fabricated either from cork or silica–phenolic material. The ablator specimens were tested in a 0.4 MW supersonic arc-jet plasma wind tunnel at heat flux conditions ranging from 6.25 MW/m2 to 9.4 MW/m2, with either specimen being stationary or transient. Stationary tests were conducted for 50 s each as a preliminary investigation, and the transient tests were conducted for ~110 s each to stimulate a spacecraft’s atmospheric re-entry heat flux trajectory. During the tests, each specimen’s internal temperatures were measured at three locations: 25 mm, 35 mm, and 45 mm from the specimen stagnation point. During the stationary tests, a two-color pyrometer was used to measure specimen stagnation-point temperatures. During the preliminary stationary tests, the silica–phenolic-insulated specimen’s reaction was normal compared to the cork-insulated specimen; hence, only the silica–phenolic-insulated specimens were further subjected to the transient tests. During the transient tests, the silica–phenolic-insulated specimens were stable, and the internal temperatures were lower than 450 K (~180 °C), achieving the main objective of this study.

show abstract

“…Polymer composites can be used as a new generation of materials with shape memory [8]. Wood flour [9], marble dust [10], and graphene oxide [11] are considered promising fillers in polymer com-posite materials. polyoxometalates, metals organicframeworks, perovskites and metal oxides [12].…”

Section: Introductionmentioning

confidence: 99%

Сhecking the possibilities of the classic technology of chemical metalization of polymer granules

Kucherenko¹,

Gajdoš²,

Kuznetsova³

et al. 2023

CTAS

View full text Add to dashboard Cite

The possibility of obtaining metallized granules of high-tonnage polymers using classical metallization technology was studied. It is shown that this technology is not effective during the metallization of polyethylene and polypropylene. Certain positive points during metallization were achieved only in the case of polyvinyl chloride granules. It was established that the treatment of granules with etching agents of different nature does not lead to a significant change in surface properties, which can explain the low efficiency of classical technology during the metallization of polyethylene, polypropylene and polyvinyl chloride granules.

show abstract

Thermophysical properties of hybrid silica phenolic ablative composite: Theoretical and experimental analysis

Cited by 6 publications

References 63 publications

Mechanical performance of adhesively bonded carbon fiber reinforced boron‐modified phenolic resin plastic‐titanium single‐lap joints at high temperature

Mechanical performance of adhesively bonded carbon fiber reinforced boron‐modified phenolic resin plastic‐titanium single‐lap joints at high temperature

Arc-Jet Tests of Carbon–Phenolic-Based Ablative Materials for Spacecraft Heat Shield Applications

Сhecking the possibilities of the classic technology of chemical metalization of polymer granules

Contact Info

Product

Resources

About