Superelasticity - Revision history

Apm: Category:Surprising facts

2026-03-29T20:18:08Z

← Older revision		Revision as of 22:18, 29 March 2026
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	{{wikitodo\|Add some examples of the by now 2018 existing experimental verifications of the effect. (diamond and sapphire)}}		{{wikitodo\|Add some examples of the by now 2018 existing experimental verifications of the effect. (diamond and sapphire)}}

			[[Category:Surprising facts]]

Apm: /* Related */ added link to Intercrystolecular snapping modes

2025-12-19T21:50:59Z

Related: added link to Intercrystolecular snapping modes

← Older revision		Revision as of 23:50, 19 December 2025
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	* [[Stiffness]]		* [[Stiffness]]
	* [[Superlubrication]] ... another performance parameter that can be unusually elevated at the nanoscale		* [[Superlubrication]] ... another performance parameter that can be unusually elevated at the nanoscale
			----
			* [[Intercrystolecular snapping modes]]

	== External links ==		== External links ==

	{{wikitodo\|Add some examples of the by now 2018 existing experimental verifications of the effect. (diamond and sapphire)}}		{{wikitodo\|Add some examples of the by now 2018 existing experimental verifications of the effect. (diamond and sapphire)}}

Apm: /* Quantitative */

2025-09-07T02:34:40Z

Quantitative

← Older revision		Revision as of 04:34, 7 September 2025
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	(Sidenote: Thermodynamic synthesis of nanoscale gemstones gives almost no control of outer shape, internal strains and heterogenity. One usually gets an unstrained homogeneous crystal lattice with crystal faces in the directions of slowest growth. So crystolecules cannot be made that way. Unfortunately.)		(Sidenote: Thermodynamic synthesis of nanoscale gemstones gives almost no control of outer shape, internal strains and heterogenity. One usually gets an unstrained homogeneous crystal lattice with crystal faces in the directions of slowest growth. So crystolecules cannot be made that way. Unfortunately.)

	== ~~Quantitative~~ ==		== Crudest quantitative estimation ==

	Nanosystems Chapter 3.3.3. Energy, force, and stiffness under large loads <br>		Nanosystems Chapter 3.3.3. Energy, force, and stiffness under large loads <br>

Apm: /* Relation to power losses / energy dissipation */

2025-09-07T02:29:46Z

Relation to power losses / energy dissipation

← Older revision		Revision as of 04:29, 7 September 2025
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	more a matter of keeping energy efficiency high <br>		more a matter of keeping energy efficiency high <br>
	rather than avoiding bond breakage. <br>		rather than avoiding bond breakage. <br>
	~~Proposwd~~ operation frequencies for productive nanosystems are <br>		Proposed operation frequencies for productive nanosystems are <br>
	decently high in the low MHz range so <br>		decently high in the low MHz range so <br>
	even quite low losses per single cycle add up quickly. <br>		even quite low losses per single cycle add up quickly. <br>

Apm: /* Relation to power losses / energy dissipatiin */

2025-09-07T02:29:23Z

Relation to power losses / energy dissipatiin

← Older revision		Revision as of 04:29, 7 September 2025
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	{{wikitodo\|Explain curves}}		{{wikitodo\|Explain curves}}

	== Relation to power losses / energy ~~dissipatiin~~ ==		== Relation to power losses / energy dissipation ==

	Avoiding high degree of flex is likely often <br>		Avoiding high degree of flex is likely often <br>

Apm: /* Relation to power losses / energy dissipatiin */ cleanup

2025-09-07T02:28:29Z

Relation to power losses / energy dissipatiin: cleanup

← Older revision		Revision as of 04:28, 7 September 2025
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	== Relation to power losses / energy dissipatiin ==		== Relation to power losses / energy dissipatiin ==

	Avoiding high degree of flex is likely ~~othen~~ <br>		Avoiding high degree of flex is likely often <br>
	more a matter of ~~emergy~~ efficiency than avoiding ~~bind~~ breakage. <br>		more a matter of keeping energy efficiency high <br>
	~~Operatiin~~ frequencies ~~can be~~ high ~~like~~ MHz so <br>		rather than avoiding bond breakage. <br>
	even quite low losses ~~pwr~~ cycle ~~can~~ add up quickly. <br>		Proposwd operation frequencies for productive nanosystems are <br>
	Going deeply into the nonlinear ~~rangevof~~ bending <br>		decently high in the low MHz range so <br>
	particularly ~~open~~ up [[reciprocative]] ~~dissipatiin mechanisms~~ <br>		even quite low losses per single cycle add up quickly. <br>
	~~that~~ do not scale nicely quadradically ~~like~~ sliding [[friction]].
			Going deeply into the nonlinear range of bending <br>
			particularly opens up [[reciprocative dissipation mechanism]]s <br>
			Which do not scale nicely quadradically as sliding [[friction]] does.

	== Misc notes ==		== Misc notes ==

Apm: /* Quantitative */ == Relation to power losses / energy dissipatiin ==

2025-09-07T02:24:42Z

Quantitative: == Relation to power losses / energy dissipatiin ==

← Older revision		Revision as of 04:24, 7 September 2025
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	So from this we glean about the bond fracturing length: <br>		So from this we glean about the bond fracturing length: <br>
	'''r_max = ~0.~~178nm~~'''		'''r_max = ~0.187nm'''

	'''~~178pm~~/152.3pm = ~~116~~.9%''' <br>		'''187pm/152.3pm = 122.8%''' <br>
	Thus we get about 15% bond bendability. <br>		Thus we get about 22% bond bendability. <br>
	For diamond a bit more as bonds go zig-zag adding bond bending flex. <br>		For diamond a bit more as bonds go zig-zag and thus <br>
	To stay well on the safe side 10% is a good estimate.		adding bending length from bonds straightening out due to bond bending flex. <br>
			Though bending bonds will also weaken tensile strength to some degree..<br>
			To stay really well on the safe side 10% is a good estimate.

	Page 54 Fighre 3.4. Shows the curves. <br>		Page 54 Fighre 3.4. Shows the curves. <br>
	{{wikitodo\|Explain curves}}		{{wikitodo\|Explain curves}}

			== Relation to power losses / energy dissipatiin ==

			Avoiding high degree of flex is likely othen <br>
			more a matter of emergy efficiency than avoiding bind breakage. <br>
			Operatiin frequencies can be high like MHz so <br>
			even quite low losses pwr cycle can add up quickly. <br>
			Going deeply into the nonlinear rangevof bending <br>
			particularly open up [[reciprocative]] dissipatiin mechanisms <br>
			that do not scale nicely quadradically like sliding [[friction]].

	== Misc notes ==		== Misc notes ==

Apm: /* Quantitative */ fixing citation

2025-09-07T02:09:50Z

Quantitative: fixing citation

← Older revision		Revision as of 04:09, 7 September 2025
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	For C–C '''r_0 = 0.1523nm'''		For C–C '''r_0 = 0.1523nm'''

	Page 53,5: <br>		Page 53 & 54: <br>
	"… the Morse function grows increasingly inaccuratte far from the equilibrium separation. For a structural perspective, the shape of the Morse function is of interest chiefly ~~withing~~ the separation defined by the inflection point, r = r_0 + (ln 2)/ beta; a morse bond stetched beyond this length ''by a position independent force'' becomes mechanically unstable (for C–C, at ~0.187nm). Beyond the inflection point the stiffness becomes negative, …"		"… the Morse function grows increasingly inaccuratte far from the equilibrium separation. For a structural perspective, (next page) the shape of the Morse function is of interest chiefly within the separation defined by the inflection point, r = r_0 + (ln 2)/ beta; a morse bond stetched beyond this length ''by a position independent force'' becomes mechanically unstable (for C–C, at ~0.187nm). Beyond the inflection point the stiffness becomes negative, …"

	So from this we glean about the bond fracturing length: <br>		So from this we glean about the bond fracturing length: <br>

Apm: /* Quantitative */ typofixes

2025-09-07T02:01:12Z

Quantitative: typofixes

← Older revision		Revision as of 04:01, 7 September 2025
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	Thus we get about 15% bond bendability. <br>		Thus we get about 15% bond bendability. <br>
	For diamond a bit more as bonds go zig-zag adding bond bending flex. <br>		For diamond a bit more as bonds go zig-zag adding bond bending flex. <br>
	~~Ti stray~~ well on the safe side 10% is a good estimate.		To stay well on the safe side 10% is a good estimate.

	Page 54 Fighre 3.4. Shows the curves. <br>		Page 54 Fighre 3.4. Shows the curves. <br>

Apm: /* Quantitative */

2023-12-16T07:58:06Z

Quantitative

← Older revision		Revision as of 09:58, 16 December 2023
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	'''178pm/152.3pm = 116.9%''' <br>		'''178pm/152.3pm = 116.9%''' <br>
	Thus we get about 15% bond bendability. For diamond a bit more as bonds go zig-zag adding bond bending flex. <br>		Thus we get about 15% bond bendability. <br>
			For diamond a bit more as bonds go zig-zag adding bond bending flex. <br>
	Ti stray well on the safe side 10% is a good estimate.		Ti stray well on the safe side 10% is a good estimate.