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...cal coefficient]] used to measure, characterize and correlate the [[wear]] of materials. ...disc|wear pin]] into account. Although, measurement variations by an order of 10-1 have been observed, the variations can be minimized if suitable precau ...

{{Short description|Solid form of the 7th element}} {{cleanup|reason=Formatting of mathematical formulas.|date=March 2018}} ...

...om its geometry, as an abstract [[undirected graph]], a [[covering graph]] of the [[complete graph]] on four vertices. ...kew polyhedron]], a surface with six squares meeting at each integer point of space. ...

...us chemistry]]. Their strain also make them of interest in the development of energy-dense compounds. ...lly stable|thermodynamically]] strained molecule via the corset effect. As of 2023, the unencumbered tetrahedrane (H₄C₄) has yet to ...

{{short description|Material consisting of two layers of graphene}} ...V. |author8=Firsov, A.A. |title= Electric Field Effect in Atomically Thin Carbon Film |year=2004 |journal= Science |volume=306 |issue=5696 |pages= 666–669 | ...

{{short description|Type of rechargeable battery}} |caption=Working principle of lithium-sulfur battery and "shuttle" effect ...

...l and Energy Diagram.png|thumb|The phonovoltaic cell and an energy diagram of its operation.<ref name="pv1" />]]A '''phonovoltaic''' ('''pV''') cell conv ...16PhRvB..93i4302M| doi-access = free}}</ref> The pV cell is an application of [[heat transfer physics]]<ref name="HTPbook">{{cite book|last=Kaviany|first ...

{{Short description|Loss of plasticity in ferritic stainless steel}} | caption1 = [[Electron backscatter diffraction]] map of 128 hrs age hardened duplex stainless steel with the ferrite phase forming ...

{{Redirect|Carbon fiber|fibers of carbon|Carbon fibers}} ...slw.jpg|thumb|upright=0.5|Tail of a [[radio-controlled helicopter]], made of CFRP]] ...

...still [[solid]]) and predictions of the crystalline structures of the rest of the elements. The following table gives the crystalline structure of the most thermodynamically stable form(s) for elements that are solid at [[ ...

The '''Glossary of fuel cell terms''' lists the definitions of many terms used within the [[fuel cell]] industry. The terms in this fuel c ...umulates on the surface of a solid or a liquid (adsorbent), forming a film of molecules or atoms (the [[adsorbate]]). ...

{{short description|Hydrocarbon compounds composed of rings fused such that the molecule is nonplanar}} ...olin|date=2014-12-19|title=Contorted Polycyclic Aromatics|journal=Accounts of Chemical Research|volume=48|issue=2|pages=267–276|doi=10.1021/ar500355d|pmi ...

...s|borosilicates]] to elements such as [[germanium]] and [[fluorite]], some of which are essential for glass transparency in areas other than the visible ...e-earth metals]] or rare earths can change the physico-chemical properties of the whole to give the glass the qualities suited to its function. Some opti ...

...oi-access=free}}</ref> or non-metallic materials. Friction welding methods of are often considered as solid-state welding. [[File:Historical photo of double spindle machine..jpg|thumb|Historical photo of double spindle machine.|282x282px]] ...