**3. Applications of vacuum vessel**


#### **4. Conclusion**

 Aluminum and its alloys have been widely used in the space, aerospace and aircraft industry because of their certain suitable property like high strength to weight ratio, low outgassing rate (1 × 10<sup>−</sup>6 Torr-L/sec-cm2 ), high resistance to corrosion, high thermal conductivity, low solubility of hydrogen, economy and easy availability when compared to stainless steel. For space application, the product is lightweight, durable and extraordinarily strong, space-age aluminum alloys were the best choice to build vacuum vessels that have a very low outgassing rate and high vacuum holding capacity. To develop an aluminum alloy square configuration vacuum system, there are many methods, for example, friction stir welding fabrication process which results in sound, defect-free, leak-proof uniform material joints between two joining surfaces of aluminum alloys. Vacuum vessels developed by this method have very good dimensional stability without distortion of the surface, low leak rate with a high vacuum holding capacity when compared to fusion and arc welding.

#### **Acknowledgements**

The author would like to thank the Department of Mechanical Engineering, LDRP- ITR, Gandhinagar, Gujarat for their support.

#### **Author details**

Rushit Mistry and Kaushal Bhavsar\* Department of Mechanical Engineering, LDRP-ITR, Gandhinagar, Gujarat, India

 \*Address all correspondence to: kaushal\_me@ldrp.ac.in

© 2018 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

*A Review on Development and Fabrication Methodology for Vacuum Vessel from Aluminum Alloy DOI: http://dx.doi.org/10.5772/intechopen.81083* 

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