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thixotropy
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thixotropy
thixotropy (θɪksəˈtrɒpɪ) [ad. G. tixotropie (T. Péterfi 1927, in Arch. f. Entwicklungsmech. CXII. 689), f. Gr. θίξ-ις touching + -o + Gr. τροπ-ή turning: see -y3.] The property of certain gels of becoming fluid when agitated and of reverting back to a gel when left to stand.1927 Chem. Abstr. XXI. 13...
Oxford English Dictionary
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Rheopecty
The opposite and much more common type of behaviour, in which fluids become less viscous the longer they undergo shear, is called thixotropy. In the body synovial fluid exhibits the extraordinary property of inverse thixotropy or rheopexy.
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rheopexy
rheopexy Physical Chem. (ˈriːəpɛksɪ) [f. rheo- + -pexy.] The property, possessed by some sols, of undergoing accelerated gelation when subjected to gentle mechanical agitation. Cf. thixotropy. So rheoˈpectic a.1935 Freundlich & Juliusburger in Trans. Faraday Soc. XXXI. 921 It is too cumbrous to say ...
Oxford English Dictionary
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DeconGel
Formulation
While CBI Polymers has kept the full formulation a secret, The formula is a mix of Surfactants, Chelates, Thixotropy, Wetting Agents, Defoamer
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Non-Newtonian fluid
fluid
Herschel–Bulkley fluid
Liquefaction
Navier–Stokes equations
Newtonian fluid
Pseudoplastic
Quicksand
Quick clay
Rheology
Superfluids
Thixotropy
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polyamide
polyamide (pɒlɪˈeɪmaɪd) [f. poly- + amide.] Any of a large class of polymers in which the units are linked by an amide group, {b1}CO·NH{b1}, and which includes many synthetic resins used commercially, notably fibres of the nylon group. Also attrib.1929 Jrnl. Amer. Chem. Soc. LI. 2550 Polyintermolecu...
Oxford English Dictionary
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Liquefaction
gases
Liquifaction point
Liquefied natural gas
Liquefied petroleum gas
Liquid air
Liquid helium
Liquid hydrogen
Liquid nitrogen
Liquid oxygen
Thixotropy
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Semi-solid metal casting
The process is named after the fluid property thixotropy, which is the phenomenon that allows this process to work. Because thixotropy (semi-solid state) is a middle state in physical or rheological sense, this process is relatively insensitive to ambient temperature
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Herbert Freundlich
See also
Freundlich equation
Ostwald–Freundlich equation
Thixotropy
References
External links
Herbert Freundlich - Did you know that the man of
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国际标准化组织 20379-2018 《精细陶瓷 (advanced ceramics, 高级技术陶瓷) using rotary ...
Dec 27, 2023儿童新闻. 国际标准化组织 20379-2018 "精细陶瓷 (advanced ceramics, 高级技术陶瓷) using rotary viscometers to measure the thixotropy of ceramic pastes "国际标准化组织 26424-2008 "精细陶瓷 (advanced ceramics, 高级技术陶瓷) Determination of the wear resistance of coatings by microscopic wear tests " ...
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شحم التزليق
تدعى ظاهرة التغير باللزوجة هذه باسم التميُّعية Thixotropy.
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哪些科学知识颠覆了你的三观?
塑性流体(plastic flow)本来是固体,受到一定外力后会流动,变成液体,比如牙膏、浓缩肉汁、巧克力等 触变流体(thixotropy),在振动、搅拌的时候,液体的流动性增加。但静置一段时间后,就会发现流动停滞。 涨塑形流体(dilatant flow)。
zhihu
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触变性 - 维基百科,自由的百科全书
触变性(英語: thixotropy ) 是指某些非牛顿流体的一種性質,它們在搅拌时成为流体,而停止搅动后逐渐变稠以及胶凝,而不是立即恢复到搅拌前的状态,而且这一过程可以反复可逆进行。 触变性也是流体结构可逆转变的一种现象,即凝胶-溶胶-凝胶的转变,它是由温度、pH或其他影响因素而引起。
zh.wikipedia.org
Shear thinning
It is sometimes considered synonymous for pseudo-plastic behaviour, and is usually defined as excluding time-dependent effects, such as thixotropy. plastic fluids can be described with the Herschel-Bulkley model, which adds a threshold shear stress component to the Ostwald equation:
Relationship with thixotropy
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Helmut Winkler
Winkler was born in Kiel and studied geology at the University of Rostock, receiving a doctorate in 1938 for work on thixotropy of minerals.
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