Hypersonic oxidization thermal testing with empirical research

A method of controlling nitrogen and oxygen content of synthetic air, comprising:

• decomposing nitrous in a decomposition system by expanding liquid nitrous into gaseous nitrous in a decomposition chamber of the decomposition system, wherein the gaseous nitrous obtains a temperature for decomposition;
• obtaining a gaseous mixture of oxygen gas (O2), transient oxygen atoms (O), nitrogen gas (N2), and/or transient nitrogen atoms (N) from the decomposition of the nitrous, wherein the oxygen atom to nitrogen atom ratio is about 1:2 (oxygen atoms/molar:
• nitrogen atoms/molar);
• providing the gaseous mixture to a test chamber;
• providing an additional nitrogen gas (N2) into the test chamber to obtain a nitrogenated gaseous mixture, wherein the test chamber optionally receives an additional oxygen gas (O2), wherein the nitrogenated gaseous mixture has a nitrogen content of either:
• less than or about 77% nitrogen gas (N2) and transient nitrogen atoms (N) by volume or moles and greater than 22% oxygen gas (O2) and transient oxygen atoms (O) by volume or moles;
• or
• greater than 80% nitrogen gas (N2) and transient nitrogen atoms (N) by volume or moles and less than 21% oxygen gas (O2) and transient oxygen atoms (O) by volume or moles;
• exposing a test material to the nitrogenated gaseous mixture in the test chamber;
• and
• determining a response of the test material to the nitrogenated gaseous mixture.

A method of controlling nitrogen and oxygen content of synthetic air, comprising:

• decomposing nitrous in a decomposition system by conditioning liquid nitrous into gaseous nitrous in a decomposition chamber of the decomposition system, wherein the gaseous nitrous obtains a temperature for decomposition;
• obtaining a gaseous mixture of oxygen gas (O2), transient oxygen atoms (O), nitrogen gas (N2), and/or transient nitrogen atoms (N) from the decomposition, wherein the oxygen atom to nitrogen atom ratio is about 1:2 (oxygen atoms/molar:
• nitrogen atoms/molar);
• providing the gaseous mixture to a test chamber;
• providing an additional nitrogen gas (N2) into the test chamber to obtain a nitrogenated gaseous mixture, wherein the test chamber is devoid of receiving additional oxygen gas (O2) input, wherein the nitrogenated gaseous mixture has a nitrogen content of either:
• less than or about 77% nitrogen gas (N2) and transient nitrogen atoms (N) by volume or moles and greater than 22% oxygen gas (O2) and transient oxygen atoms (O) by volume or moles;
• or
• greater than 80% nitrogen gas nitrogen gas (N2) and transient nitrogen atoms (N) by volume or moles and less than 21% oxygen gas (O2) and transient oxygen atoms (O) by volume or moles;
• exposing the nitrogenated gaseous mixture to a test material in the test chamber;
• and
• determining a response of the test material to the nitrogenated gaseous mixture.