Results 91 to 100 of about 106,979 (359)

Inhibitory effect on Streptococcus mutans and mechanical properties of the chitosan containing composite resin

open access: yesRestorative Dentistry & Endodontics, 2013
Objectives This study evaluated the antibacterial effect and mechanical properties of composite resins (LCR, MCR, HCR) incorporating chitosan with three different molecular weights (L, Low; M, Medium; H, High). Materials and Methods Streptococcus (S)
Ji-Sun Kim, Dong-Hoon Shin
doaj   +1 more source

Evaluation of experimental epoxy monomers [PDF]

open access: yes
Future generation aircraft need higher performance polymer matrices to fully achieve the weight savings possible with composite materials. New resins are being formulated in an effort to understand basic polymer behavior and to develop improved resins ...
Ficklin, R.   +3 more
core   +1 more source

Wear of Posterior Composite Resins

open access: yesDental Materials Journal, 1987
In vitro wear of sixteen posterior composite resins was determined by the glass beads abrasion test. The wear was remarkably greater with the thick slurry than with the thin slurry. Microfilled posterior composites were higher wear-resistant than highly loaded and blended posterior composites.
Kazuo Ida, Yoshiaki Tani, Hideaki Goto
openaire   +4 more sources

Impact of Hot Isostatic Pressing on Microstructure Evolution and Creep Performance of Powder Bed Fusion–Laser Beam Processed CM247LC

open access: yesAdvanced Engineering Materials, EarlyView.
The influence of Hot Isostatic Pressing (HIP) temperature on the microstructure and creep performance of powder bed fusion–laser beam processed CM247LC superalloy is investigated. Grain growth and γ’ precipitate evolution are characterized following HIP at varying temperatures.
Ahmed Fardan   +4 more
wiley   +1 more source

Advanced thermoplastic resins, phase 2 [PDF]

open access: yes
High temperature structural resins are required for use on advanced aerospace vehicles as adhesives and composite matrices. NASA-Langley developed polyimide resins were evaluated as high temperature structural adhesives for metal to metal bonding and as ...
Brown, A. M., Falcone, A., Hill, S. G.
core   +1 more source

Elastomer coated filler and composites thereof comprising at least 60% by weight of a hydrated filler and an elastomer containing an acid substituent [PDF]

open access: yes, 1983
The impact resistance of flame retardant composites, especially thermoplastic molding: compounds containing over 60% hydrated mineral filler such as Al(OH)3 or Mg(OH)2 as improved by coating the filler with 1 to 20% of an elastomer.
Ingham, J. D.   +2 more
core   +1 more source

Influence of absorbed moisture on the dielectric properties of epoxy resins [PDF]

open access: yes, 2010
The dielectric response of two bisphenol-A epoxy resin systems Araldite CY1301 (Tg ~ 50°C) and Araldite CY1311 (Tg ~0°C) was studied at different levels of absorbed moisture.
Chalashkanov, N. M.   +3 more
core   +1 more source

Comparative Study of Experimental Methods for Measuring Thermal Properties of 100Cr6 Steel Powders

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates the thermal properties of 100Cr6 steel in both bulk and powder forms. Measuring the very low thermal conductivity typically exhibited by powders poses significant challenges. To address this, two novel measurement techniques—temperature gradient and finite laser pulse response—are introduced and evaluated by comparison with the ...
Junsheng Zhuo   +8 more
wiley   +1 more source

MICROHARDNESS EVALUATION OF THREE DIRECT COMPOSITE RESINS

open access: yesRomanian Journal of Medical and Dental Education, 2019
This survey aimed at testing microhardness and determining its variation in case of some physiognomic coronary restoration materials frequently used in the dental practice. Material and method. The experimental researches related to the determination of
Elena-Raluca Baciu   +5 more
doaj  

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