2024 Optical basicity definition

Optical basicity definition

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Webbasicity noun ba· sic· i· ty bā-ˈsis-ət-ē plural basicities : the quality, state, or degree of being a base Dictionary Entries Near basicity basichromatin basicity basicranial See More Nearby … WebTY - JOUR. T1 - Optical basicity and refractivity of aluminosilicate glasses. AU - Duffy, John A. PY - 2003. Y1 - 2003. N2 - Refractivity data for aluminosilicate glasses (densities and refractive indices) have been used to examine the relationship between oxygen polarisability, alpha(O2-), and optical basicity, and also to calculate the basicity moderating parameter …

A new method for the determination of optical band gap and

WebFeb 26, 2015 · A new method (named as DASF: Derivation of absorption spectrum fitting) is proposed for the determination of optical band gap and the nature of optical transitions in semiconductors; this method only requires the measurement of the absorbance spectrum of the sample, avoiding any needs to film thickness or any other parameters. WebEllipsometry is an optical technique that measures changes in polarization (phase, Δ, and amplitude, Ψ) of monochromatic light reflecting from matter, and these standard ellipsometric parameters Ψ and Δ are related to the complex ratio of reflection coefficient for light polarized parallel p and perpendicular s to the plane of incidence. 2.3.3. they\u0027re d1

Optical Basicity and Refractivity of Germanate Glasses

WebThis paper reports on different physical and optical properties of Nd 3+ -doped bismuth borate glasses. The glasses containing Nd 3+ in (25 − x)Bi 2 O 3 :20Li 2 O:20ZnO:35B 2 O 3 :xNd 2 O 3 (where x = 1, 1.5, 2 mol%) have been prepared by melt-quenching method. The amorphous nature of the glasses was confirmed by X-ray diffraction studies. WebSep 1, 2003 · Optical basicity of a medium is strongly influenced by the polarizing strength of the cations present. A strongly polarizing cation will attract and bind the ligands towards that cation. Such binding reduces the electron donating power of the ligands towards the probe ion resulting in smaller optical basicity. WebNov 30, 2024 · modifier. The molar polarizability, αm, oxide ion polarizability, αo2-and optical basicity, Λ of the glasses are calculated by Lorentz-Lorenz equation. The glasses were found to possess αm values 3, and αo2-values between 3.303 to 4.772. Meanwhile, optical basicity increases from 0.115 to 0.893. Keywords: barium oxide, refractive index ... they\\u0027re d

Basicity Definition & Meaning Merriam-Webster Medical

Optical Basicity and Polarizability of Nd3+-Doped …

Webbasicity is a predominant factor for both properties and structure of glasses, and it may cover exhaustively the relation among composition, structure and properties. Basicity can … WebOct 1, 2014 · A method for rough estimation of the optical thickness of solar prominences in Halpha line is presented. The method is based on the fitting of observed profiles with the synthetic ones computed... they\\u0027re czWebOptical basicity was proposed by Duffy and Ingram [1,2] is used as a measure of acid- base properties of oxides and glasses. Dimitrov and Sakka [3] have estimated the optical … they\u0027re d0

"WebIt is shown that optical basicity avoids the confusion that can arise from the use of empirical basicity ratios, particularly with regard to the effect of magnesia, and in addition,... " - Optical basicity definition

Optical basicity definition

$Optical Basicity and Refractivity of Germanate Glasses$

WebBasicity definition: The quality or condition of being a base. The capacity of an acid to react with a base, measured by the number of hydrogen atoms that can be replaced by a base. WebSlag Basicity is a measure of the acidic-basic character of the oxides, widely used by the glass scientists, slag metallurgists and some geologists as well. You will get the details …

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WebThe optical basicity of complex nitrides can therefore be calculated by the same method established for oxides using the equivalent fractions and the basicity of the constituent … WebThe optical basicity of complex nitrides can therefore be calculated by the same method established for oxides using the equivalent fractions and the basicity of the constituent nitrides. The relationship between nitride polarizability α N and basicity Λ(nitride) was found to be linear, with Λ(nitride) = 0.39α N − 0.14 where α N is given ...

WebAug 1, 1993 · Optical basicity is particularly useful for oxidic network systems, such as silicate, phosphate, or borate in crystalline, vitreous, and liquid (molten) form. The … WebFeb 13, 2024 · The concept of “basicity ” has been central to our understanding of slag chemistry for many decades. Traditionally, basicity has been connected to the level of …

http://www.ecm.okayama-u.ac.jp/ceramics/Research/Papers/2011/Nanba_JCSJ_119(2011)720.pdf WebThe concept of optical basicity (Λ) is particularly suited to binary oxides and oxidic network materials such as silicates to characterize the acid–base nature of glasses and melts and to account for the complexation of metal cations by a variety of anionic frameworks.

WebBasicity (in metallurgy), the ratio (in percent by weight) of basic and acidic oxides in iron ore materials (iron ore, sinter, and pellets), and also in blast-furnace and steel-smelting slag. Basicity defines the chemical composition and metallurgical properties of such materials.

WebAug 17, 1998 · The optical basicity Λ of the oxides has been estimated on the basis of average electronic oxide polarizability calculated from the refractive index Λ(n 0) and the energy gap Λ(E g). A good agreement has been observed between the optical basicity data obtained using independent initial quantities. safford jeep of warrentonWebIn optics, optical bistability is an attribute of certain optical devices where two resonant transmissions states are possible and stable, dependent on the input. Optical devices with a feedback mechanism, e.g. a laser, provide two methods of achieving bistability . safford jack in the box safford justice of the peaceWebFeb 25, 2002 · The optical basicity for La 2 O 3 oxide is found to be 1.07, being much larger compared with typical glass-forming oxides such as B 2 O 3 (0.42) and SiO 2 (0.48) but … they\\u0027re d5WebJun 25, 2024 · So, lanthanum is accountable for the increase of non-bridging oxygen due to this shift is obtained. So, the optical bandgap of these glasses has been decreased as well as the refractive index. Polarizability and basicity of the prepared glasses according to the refractive index and optical bandgap have been investigated. they\u0027re dWebThe concept of optical basicities initially developed by Duffy for solid oxides was successfully transferred to low melting salts such as ionic liquids (ILs). Several ionic … safford jeep winchesterWebApr 6, 2024 · Optical basicity, K, is a parameter that often correlates with the level of depolymerization of a conventional glass network where it will be higher as more non-bridging oxygen atoms and ionic... they\\u0027re d1