Balakrishna Palanki

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Questions related from Balakrishna Palanki

Why is two stage aging of Alloy 718 required?

The Handbook indicates solution treatment at 980 C (1800 F), followed by aging at 720 C (1325 F) followed by aging at 620 C (1150 F). What is the basis for two aging treatments? What is the reason...

12 December 2019 3,041 2 View

How can a ceramic substrate be preheated in-situ in Plasma Arc Spray coating? Infra red? Microwave? Plasma without powder feed?

How can a ceramic substrate be preheated in-situ in Plasma Arc Spray coating? Infra red? Microwave? Plasma without powder feed? The bonding of the metal to the ceramic substrate is believed to...

02 February 2019 9,039 3 View

What is the relationship between sintering and capillary action?

Capillary forces are said to be driving the process of sintering in compacts from powder metals and ceramics. A column of water rises in a capillary tube, while a column of mercury goes down. The...

10 October 2018 3,052 3 View

What changes may occur in properties when a sintered ceramic is re-sintered?

When a green ceramic is subjected to firing, the sintering process is expected to result in shrinkage, densification, reduction in porosity, improvement in strength, hardness and other properties....

07 July 2018 7,296 5 View