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Miscellaneous

Are polymers explosive?

Are polymers explosive?

A polymer-bonded explosive, also called PBX or plastic-bonded explosive, is an explosive material in which explosive powder is bound together in a matrix using small quantities (typically 5–10% by weight) of a synthetic polymer. …

What is the strongest explosive chemical?

Azidoazide azide
Azidoazide azide is the most explosive chemical compound ever created. It is part of a class of chemicals known as high-nitrogen energetic materials, and it gets its “bang” from the 14 nitrogen atoms that compose it in a loosely bound state. This material is both highly reactive and highly explosive.

What is HMX explosive used for?

HMX is used to implode fissionable material in nuclear devices to achieve critical mass and as a component of plastic-bonded explosives, solid fuel rocket propellants, and as burster chargers in military munitions (EPA 1988).

What explosive is used in artillery?

High explosives provide the lethal pressure, heat, and fragmentation forces in artillery shells, rockets, grenades, and explosives, and they typically contain TNT, RDX, and/or HMX….Energetic Compounds.

Abbrev Name Applications
TNT 2,4,6-Trinitrotoluene Composition B, Octol, Tritonal

What is Pek explosive?

PETN, abbreviation of pentaerythritol tetranitrate, a highly explosive organic compound belonging to the same chemical family as nitroglycerin and nitrocellulose.

Why do artillery shells explode?

as I understand it, artillery shells explode when they hit the ground because there’s a small amount of volatile chemical inside the round that ignites when it experiences high levels of acceleration, which makes the main charge explode.

What makes artillery shells explode?

Modern high-explosive artillery shells consist of a shell casing, a propelling charge, and a bursting charge; the propelling charge is ignited by a primer at the base of the shell, and the bursting charge by a fuse in the nose. Steel has generally supplanted brass for cartridge cases.

Is there any uncertainty when converting from HV5 to HV30?

There is some information in ISO 18265 about uncertainty related to conversions between scales. There is some information showing uncertainty when converting HV5 or HV10 to HV30, but it is limited to cold working tool steels, albeit across a wide hardness range.

Are your HV5 results within specification?

If HV5 results are comfortably within specification, your customer is being unreasonably rigid. I am wary of conversions across hardness scales and especially to UTS, but the difference here will be minimal, certainly less than the measurement error.

Is HV5 and HV10 the same thing?

I know that HV5 or HV10 is same result. Not necessarily, although no one will say that there isn’t a strong correlation. As cloa is asking, where you near the limits of HV5? If spec asks for HV10 measurements, client is correct when they want HV10 results, not converted values from another test method.

How many HV’s needed for no load?

Considering that 20 years ago they would have specified an HV and no load sounds like someone is a paper pusher. If the part is small or thin you could tell them that they used 5 in order to not exceed recommended loads, otherwise it is a slip up.