Scientists identify as world’s most heat resistant materials

Posted on:26 Dec 2016 18:01:32
Scientists identify as world’s most heat resistant materials
26 December 2016 Current Affairs: A team of UK-based researchers have identified Hafnium carbide (HfC) and Tantalum carbide (TaC) as the world’s most heat resistant material. They can withstand record melting point temperatures up to 3958°C (approx 4000°C). New Laser-heating techniques were used to find the temperature at which  TaC and HfC melted, both separately and in mixed compositions.



Hafnium carbide (HfC) and Tantalum carbide (TaC) are refractory ceramicse. they are extraordinarily resistant to heat. Researchers found TaC melted at 3,768 degrees Celsius, and HfC melted at 3,958 degrees Celsius. 

Besides, the mixed compound (Ta0.8Hf0.20C) exceeded its previous recorded melting point. These materials at present are mainly used in thermal protection systems on high-speed vehicles and as fuel cladding in the super-heated environments of nuclear reactors. This discovery may pave the way for improved heat resistant shielding for the faster-than-ever hypersonic space vehicles. It means that future spacecraft could become more faster than ever. 

Currently hypersonic aircraft travelling above Mach 5 (5 times speed of sound) speed creates very high temperatures as friction is involved when travelling this speed limit. This means that these materials will enable spacecraft to withstand the extreme heat generated from leaving and re-entering the atmosphere.

 

Monthly Current Affairs

Current Affairs Section

Daily Current Affairs Quiz

Subscribe to Current Affairs

Enter your email to get daily current affairs

Current Affairs October 2017

20 OCTOBER
NEWS
19 OCTOBER
NEWS
18 OCTOBER
NEWS
17 OCTOBER
NEWS

Current Affairs September 2017

30 SEPTEMBER
NEWS
28 SEPTEMBER
NEWS
27 SEPTEMBER
NEWS
26 SEPTEMBER
NEWS

Current Affairs August 2017

31 AUGUST
NEWS
30 AUGUST
NEWS
29 AUGUST
NEWS
28 AUGUST
NEWS