Pure metals and metallic alloys - Revision history

Apm: /* Related */

2023-12-13T12:20:55Z

← Older revision		Revision as of 14:20, 13 December 2023
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	* [[Atomic precision]]		* [[Atomic precision]]
	----		----
	* [[Passivation (disambiguation)]]		* '''[[Passivation (disambiguation)]]'''
	* [[Nanoscale surface passivation]] (old: [[Surface passivation]])		* [[Nanoscale surface passivation]] (old: [[Surface passivation]])
	* [[Macroscale surface passivation]]		* [[Macroscale surface passivation]]

Apm: /* Related */ some structuring

2023-12-13T12:20:35Z

Related: some structuring

← Older revision		Revision as of 14:20, 13 December 2023
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	== Related ==		== Related ==

			* '''[[Oxidation]] & [[Diffusion]]'''
			* '''[[Metallic contact welding]]''' (related to [[Seamless covalent welding]])
			----
	* [[Macroscale style machinery at the nanoscale]]		* [[Macroscale style machinery at the nanoscale]]
	* [[Atomic precision]]		* [[Atomic precision]]
			----
	* [[Passivation (disambiguation)]]		* [[Passivation (disambiguation)]]
	* [[Nanoscale surface passivation]] (old: [[Surface passivation]])		* [[Nanoscale surface passivation]] (old: [[Surface passivation]])
	* [[Macroscale surface passivation]]		* [[Macroscale surface passivation]]
	* [[Passivation layer mineral]]		* [[Passivation layer mineral]]
			----
			Complementary:
	* Gem-gum: [[The defining traits of gem-gum-tec]]		* Gem-gum: [[The defining traits of gem-gum-tec]]
	* [[Gemstone-like compound]]		* [[Gemstone-like compound]]
	* [[Oxidation]] & [[Diffusion]]
	* [[Metallic contact welding]] (related to [[Seamless covalent welding]])

Apm: /* Related */ added links

2023-12-13T12:19:23Z

Related: added links

← Older revision		Revision as of 14:19, 13 December 2023
Line 23:		Line 23:
	* [[Macroscale style machinery at the nanoscale]]		* [[Macroscale style machinery at the nanoscale]]
	* [[Atomic precision]]		* [[Atomic precision]]
	* [[Passivation]]		* [[Passivation (disambiguation)]]
	* [[Gem-gum]]		* [[Nanoscale surface passivation]] (old: [[Surface passivation]])
			* [[Macroscale surface passivation]]
			* [[Passivation layer mineral]]
			* Gem-gum: [[The defining traits of gem-gum-tec]]
	* [[Gemstone-like compound]]		* [[Gemstone-like compound]]
			* [[Oxidation]] & [[Diffusion]]
			* [[Metallic contact welding]] (related to [[Seamless covalent welding]])

Apm: basic page

2022-05-18T10:36:55Z

basic page

New page

{{stub}}

Why these are to first approximation a bad choice for stiff [[Macroscale style machinery at the nanoscale|cog&gear style nanomachinery nanomachinery]] and [[gemstone-like compound]]s are the way to go instead:
* '''tendency to surface diffusion''' – some atoms do not stay where put at room temperature
* '''tendency to oxidation''' – for all but a few noble metals which are generally too rare for large scale structural purposes
* '''incompatibility with [[nanoscale passivation]]''' – making [[seamless covalent welding]] the default. (Related: [[Catenation]])
* ...

Stoichometric intermetallic compounds sometimes fair somewhat better:<br>
Despite still being electrically conductive and optically reflective in the human visible spectral range,<br>
their bonds have a bore covalent character.<br>
This makes them less ductile and more brittle, which is ...
* an undesirable property form macroscale parts with many high strain internal defects
* a desirable property for nanoscale parts with on average no defects

Some gemstones that contain non-mentals too are also still metallic in optical and conductivity and optical properties (similar to inter-metallic compounds). Examples include:
* pyrite FeS (iron sulfides)
* hematite and magnetide (iron oxides)
* titanium nitride and some other XY-type compounds where X=metal Y=nonmetal

== Related ==

* [[Macroscale style machinery at the nanoscale]]
* [[Atomic precision]]
* [[Passivation]]
* [[Gem-gum]]
* [[Gemstone-like compound]]