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China a dongshengyantai@163.com Keywords: Borosilicate foam glass; Foam structure; Foam growth.
Insulation effect and mechanical performance of foam glass depend, to a large extent, on foam structure.
What's more important is to explore how these factors influence the foam structure.
Effects on foam structure of foaming conditions.
Lu: Silicate Physical Chemistry (Wuhan University Of Technology Press, Wuhan, China, 1996)

However, a clear understanding of its chemical structure, physical behavior, and synthetic pathways is essential to ensure its safe and efficient use.
Chemical Composition and Structure HAN is a salt, composing of a hydroxyl ammonium cation (NH3OH+) and a nitrate anion (NO), with a molecular formula of NH3OH·NO3.
This internal oxidizer–fuel structure allows HAN to release a large amount of energy upon decomposition, which makes it suitable as a monopropellant oxidizer or component in fuel blends [4].
Ionic Structure of Hydroxylammonium Nitrate (HAN) Physical Properties of HAN The physical properties of HAN, particularly in aqueous solution, make it highly suitable for propulsion.
While platinum and iridium offer lower ignition temperatures and stable decomposition, they are costly and require specialized support structures.

As a consequence, the incorporation of silicate groups (SiO44) into calcium phosphate structures appears to increase bioactivity [4,5].
Vibration bands corresponding to PO43 groups overlap the one of SiO4 4- groups because phosphate and silicate groups have the same tetragonal structure.
These variations are attributed to the incorporation of silicate groups into the βTCP structure, substituting for phosphates.
FTIR investigations did not allow to conclude on the presence of silicate groups into the calcium phosphate structure.
Elliott, in: Structure and chemistry of the apatites and other calcium orthophosphates, Studies in Inorganic Chemistry vol. 18, edited by Elsevier (1994) [3] A.

Among various cathode chemistries available, cathode with layered structure and nickel-rich compositions (Ni content ³ 80%), such as LiNixCoyMn1-x-yO2 (NCM) and LiNixCoyAl1-x-yO2 (NCA), have gained substantial interest owing to their high energy density [2–4].
This case was different from the result of our previous study, where we successfully synthesized a layered cathode with cathode chemistry of NCM 111 (lower Ni content) from a waste battery cathode without flowing oxygen gas [8].
This result aligned with the XRD characterization that indicated the incomplete formation of hexagonal α-NaFeO2 layered crystal structure.
The defined structure can be correlated with the less reduction of Ni3+, suppressing cation mixing and oxygen vacancy formation.
Manthiram, A reflection on lithium-ion battery cathode chemistry, Nature Communications 2020 11:1 11 (2020) 1–9

The synthesized nanopowders were characterized in terms of chemical composition (EDS), structure FTIR and XRD, particle size and morphology by TEM.
Science China Chemistry Vol. 58 (2015), p. 1090
International Letters of Chemistry, Physics and Astronomy Vol. 14 (2013), p. 26

Polymer Material Application in Cold Insulation Structures Xiaoling Luoa Bing Li b Qingdao University of Science and Technology, Qingdao, 266061, China a xiaolingluo@126.com, bjininglibing@163.com Keywords: polymer material; cold insulation structure; additive Abstract.
In the late of 1830s it entered natural polymer chemistry modified stage and half synthesis polymer materials presented.
Polymer materials are applied widely in a modern cold insulation structure.
Therefore moistureproof layers are needed in a cold insulation material structure design.
It is believed that polymer materials are important materials in cold insulation structures.

The segregation has an important consequence on the final structure of nanopowders stabilizing the particle size.
Zhang, Electronic structure and optical properties of Cr doped SnO2 superlattice, Acta Physica Sinica 60 (9) (2011)
Gouvea, Microstructure and structure of NiO-SnO2 and Fe2O3-SnO2 systems, Appl.
Arabczyk, Specific properties of fine SnO2 powders connected with surface segregation, Analytical and Bioanalytical Chemistry 378 (2) (2004) 411-415
Nowotny, INTERFACE DEFECT CHEMISTRY OF OXIDE CERAMIC MATERIALS - UNRESOLVED PROBLEMS, Solid State Ionics 49 (1991) 119-128

Eliminating defects arising from production routes and poor stoichiometric chemistry by adopting an effective production route and balanced alloy chemistry is needed to develop the required structure and subsequent desired properties.
Features of specific materials used for sintering Nickel-based superalloy [5] Elements Weight (wt.%) Particle size (µm) Purity (%) Supplier Chromium 17 10 99.2 FloMaster Metal Powder Cobalt 6.5 50 (mesh) 99.99 Cerac/Pure Advanced Speciality Inorganics Molybdenum 1.2 2.4 99.99 Cerac/Pure Advanced Speciality Inorganics Aluminium 6 25 99.8 TLS Technik and Co Tungsten 4 25 99.9 Goodfellows Tantalum 7.6 -325 (mesh) 99.9 Aldrich Chemistry Nickel Balance 3-4 99.8 Goodfellows 2.3 Phase, Microstructure, and Microhardness Evaluation The sintered nickel-based superalloy samples were prepared for characterization via grinding and polishing using finer grits and diamond suspension for a mirror finish.
As shown in Figure 1(c), the FCC_LI2 a superlattice structure of the FCC phase, γ’ precipitated from a region of 1350 °C, while the matrix FCC, γ precipitates from 1250 °C and attained a volume fraction of 0.746 at room temperature.
Although, the detected phases share similarity with the predicted phases, it should be noted that predicted results are made for an ideal and homogeneous alloy and not considering impurities or defects that may interplay with the chemistry and structure of the alloy during fabrication.

The novel research on organic polymer chemistry and physical organic chemistry involve poly(imide) siloxane on advanced and emerging technologies in radiation therapy.
These are examinations for mechanical tests, destroying the polymer structure.
Thus, flexible poly (imide siloxane) copolymer structures were produced which were also suitable for pelletizing.
When different temperatures are applied to the obtained solution samples, it is provided that the structure is produced as a flexible polymer or powdered poly (imide siloxane) copolymer structures suitable for pelletization.
It is produced as poly (imide siloxane) synthetic rubber with a flexible structure to examine the shielding capacity of gamma rays.

The factors influencing the formation of the alloy structure were brought out.
This fact, together with the accelerated cooling regime causes the alloy with a high crystallization supercooling, promoting refinement of the grain structure of the metal matrix.
Merzhanov, SHS, Physical chemistry, Chemistry, Moscow, 1983