scholarly journals Hybrid Carbon-Carbon Ablative Composites for Thermal Protection in Aerospace

2014 ◽  
Vol 2014 ◽  
pp. 1-15 ◽  
Author(s):  
P. Sanoj ◽  
Balasubramanian Kandasubramanian
Keyword(s):  
High Temperature ◽  
Composite Materials ◽  
Thermal Protection ◽  
Coefficient Of Thermal Expansion ◽  
Cost Effective ◽  
Thermomechanical Properties ◽  
Substrate Material ◽  
Space Vehicles ◽  
External Temperature ◽  
Heat Shielding

Composite materials have been steadily substituting metals and alloys due to their better thermomechanical properties. The successful application of composite materials for high temperature zones in aerospace applications has resulted in extensive exploration of cost effective ablative materials. High temperature heat shielding to body, be it external or internal, has become essential in the space vehicles. The heat shielding primarily protects the substrate material from external kinetic heating and the internal insulation protects the subsystems and helps to keep coefficient of thermal expansion low. The external temperature due to kinetic heating may increase to about maximum of 500°C for hypersonic reentry space vehicles while the combustion chamber temperatures in case of rocket and missile engines range between 2000°C and 3000°C. Composite materials of which carbon-carbon composites or the carbon allotropes are the most preferred material for heat shielding applications due to their exceptional chemical and thermal resistance.

scholarly journals High-temperature heat-shielding, ceramic and ceramic-metal composite materials for new-generation aviation equipment

2020 ◽  
pp. 83-92
Author(s):  
Yu. A. Balinova ◽  
D. V. Graschenkov ◽  
A. A. Shavnev ◽  
V. G. Babashov ◽  
A. S. Chaynikova ◽  
...  
Keyword(s):  
High Temperature ◽  
Composite Materials ◽  
Ceramic Composite ◽  
Metal Composite ◽  
Structural Elements ◽  
Temperature Heat ◽  
Metal Ceramic ◽  
Ceramic Composite Materials ◽  
Heat Shielding ◽  
New Generation

This paper describes achievements of the All-Russian Scientific Research Institute of Aviation Materials in the field of creating high-temperature heat-shielding, ceramic and metal-ceramic composite materials. The advantages and prospects of applying the developed materials in the manufacturing of structural elements of aircraft and friction joints are discussed. The synthesis features and basic properties of metal-ceramic composite materials based on light alloys, refractory metal matrices, ceramic composite materials for use in heavily loaded structural elements of modern aircraft are presented. The main achievements in the field of heat-shielding materials based on refractory oxide fibres are presented, along with their properties and application in new-generation aircrafts.

scholarly journals Editorial: Ultra High Temperature Ceramics for Aerospace Applications

2010 ◽  
Vol 3 (1) ◽  
pp. 9-9
Author(s):  
Raffaele Savino
Keyword(s):  
High Temperature ◽  
High Speed ◽  
Thermal Protection ◽  
Space Vehicles ◽  
Component Level ◽  
Ultra High Temperature Ceramics ◽  
Thermal Protection Systems ◽  
Protection Systems ◽  
The Subject ◽  
Ultra High Temperature

Improved interest in ultra-high-temperature ceramics (UHTCs) is being animating the scientific community. This emerging attention is driven by the demand of developing re-usable hot structures as thermal protection systems of aerospace vehicles, able to re-enter in planetary atmospheres at relatively high speed (order of 8-11 Km/s). In contrast to traditional blunt capsules or Shuttle-like vehicles, characterised by poor gliding capabilities and complex thermal protection systems, the future use of UHTCs opens new horizons for the development of spaceplanes with slender fuselage noses and sharp wing leading edges. Advanced aerodynamic configurations reduce the vehicles drag, enhance the vehicles performances, due to a larger manoeuvrability resulting in larger down range, cross range and abort windows, and reduce electromagnetic interferences and communications black-out. Analysis has shown that materials with temperature capability approaching 2000°C and above will be required for these space vehicles, but the state of the art Reinforced Carbon-Carbon (RCC) material, currently used on the Space Shuttle, have maximum use temperatures of approximately 1650°C. The articles collected in this issue provide state-of-art scientific advancements on the subject with particular attention to the potential technological applications. The papers specifically deal with research studies on monolithic ceramic materials, composed primarily of Zirconium and Hafnium Diborides with different additives. The activities are carried out at materials level, with furnace or arc-jet testing, or include developments of UHTC-based hot structures at sub-component level. In the latter case, ultra-high temperature ceramic prototype structures have been developed and tested with embedded structural health monitoring systems. I want to thank all the article contributors for their manuscripts. I hope they will be useful for future basic and applied researches on the subject.

Fabrication of 3D-IC Interposers

2013 ◽  
Vol 2013 (DPC) ◽  
pp. 001295-001321
Author(s):  
John T. Keech ◽  
Garret Piech ◽  
Scott Pollard
Keyword(s):  
Integrated Circuit ◽  
Coefficient Of Thermal Expansion ◽  
Three Dimensional ◽  
Cost Savings ◽  
Cost Effective ◽  
Quality Parameters ◽  
Substrate Material ◽  
3D Ic ◽  
And Performance ◽  
Three Dimensional Integrated Circuit

Interposer fabrication has gained a lot of attention in the area of three-dimensional integrated circuit (3D-IC) integration. Glass has many properties that make it well suited for interposer substrates, such as adjustable coefficient of thermal expansion, advantaged electrical properties and unique forming processes. Furthermore, glass based solutions can also provide significant cost advantages in substrate material, via formation, and subsequent processing. In this paper, we will cover how fusion formed glass provides cost-effective solutions for the manufacturing of interposer substrates. Leveraging the ability to create through-glass-via (TGV) substrates in as-formed 100 μm thick precision glass, with a pristine surface, can avoid the need for back grinding and polishing operations. This has the potential to eliminate several manufacturing steps for polishing and thinning, while providing associated cost savings. Significant progress has been made in demonstration of TGV technology. Fully populated wafers with 100,000s of through or blind holes (≥ 25 μm diameter) are fabricated today, and 10–20 μm diameters are in development. We will report on important quality parameters measured on TGV wafers and positive implications with respect to product quality and strength. The ability to leverage industry metallization techniques and performance characteristics will also be reported. Finally, we will discuss opportunities to leverage cost-effective glass interposer solutions.

Heat and mass transfer in thermal protection composite materials upon high temperature loading

2016 ◽  
Vol 54 (3) ◽  
pp. 390-396 ◽  
Author(s):  
V. F. Formalev ◽  
S. A. Kolesnik ◽  
E. L. Kuznetsova ◽  
L. N. Rabinskii
Keyword(s):  
Mass Transfer ◽  
High Temperature ◽  
Composite Materials ◽  
Heat And Mass Transfer ◽  
Thermal Protection

High-Temperature Study of Heat-Shielding Composite Materials of the “Oxide–Oxide” Class

2014 ◽  
Vol 54 (6) ◽  
pp. 494-496 ◽  
Author(s):  
V. A. D’yakonov ◽  
E. S. Lukin ◽  
N. V. Nefedova ◽  
B. F. Pronin ◽  
E. N. Filatov
Keyword(s):  
High Temperature ◽  
Composite Materials ◽  
Temperature Study ◽  
Heat Shielding ◽  
High Temperature Study

Determination of high temperature thermoradiative properties of composite materials for the thermal protection of spacecraft

1995 ◽  
Vol 27/28 (3) ◽  
pp. 253-259 ◽  
Author(s):  
Joseph Giral ◽  
Daniel Hernandez ◽  
Bruno Rivoire ◽  
Jean-François Robert ◽  
Claude Royère ◽  
...  
Keyword(s):  
High Temperature ◽  
Composite Materials ◽  
Thermal Protection

Review of High Temperature Ceramics for Aerospace Applications

2015 ◽  
Vol 1132 ◽  
pp. 385-407 ◽  
Author(s):  
Winston O. Soboyejo ◽  
J.D. Obayemi ◽  
E. Annan ◽  
E.K. Ampaw ◽  
L. Daniels ◽  
...  
Keyword(s):  
High Temperature ◽  
Final Section ◽  
Thermal Protection ◽  
Molybdenum Disilicide ◽  
Thermal Barrier ◽  
Space Vehicles ◽  
Thermal Protection Systems ◽  
Aerospace Applications ◽  
Structural Applications ◽  
Protection Systems

This paper presents a review of high temperature ceramics research for aerospace applications. Following a brief historical perspective, the paper reviews the effort to toughen ceramics for high temperature structural applications. These include: efforts to toughen zirconia-based ceramics, aluminum oxide, silicon carbide, silicon nitride, molybdenum disilicide and zirconium diborides and carbon-based composites. The development of thermal protection systems is also reviewed within the context of thermal barrier coatings (TBCs) and thermal protection systems for space vehicles. The paper concludes with a final section in which the implications of the results are then discussed for the thermostructural applications of ceramics in aerospace structures.

Mineral/microfibrillated cellulose composite materials: High performance products, applications, and product forms

TAPPI Journal ◽  
2018 ◽  
Vol 17 (09) ◽  
pp. 507-515 ◽  
Author(s):  
David Skuse ◽  
Mark Windebank ◽  
Tafadzwa Motsi ◽  
Guillaume Tellier
Keyword(s):  
Composite Materials ◽  
High Performance ◽  
Aqueous Suspension ◽  
Production Capacity ◽  
Cost Savings ◽  
Cost Effective ◽  
New Materials ◽  
Wet Strength ◽  
Product Forms ◽  
Cellulose Composite

When pulp and minerals are co-processed in aqueous suspension, the mineral acts as a grinding aid, facilitating the cost-effective production of fibrils. Furthermore, this processing allows the utilization of robust industrial milling equipment. There are 40000 dry metric tons of mineral/microfbrillated (MFC) cellulose composite production capacity in operation across three continents. These mineral/MFC products have been cleared by the FDA for use as a dry and wet strength agent in coated and uncoated food contact paper and paperboard applications. We have previously reported that use of these mineral/MFC composite materials in fiber-based applications allows generally improved wet and dry mechanical properties with concomitant opportunities for cost savings, property improvements, or grade developments and that the materials can be prepared using a range of fibers and minerals. Here, we: (1) report the development of new products that offer improved performance, (2) compare the performance of these new materials with that of a range of other nanocellulosic material types, (3) illustrate the performance of these new materials in reinforcement (paper and board) and viscosification applications, and (4) discuss product form requirements for different applications.

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