Microdeformational behavior of a dispersely filled composite material with an elastoplastic matrix

1988 ◽  
Vol 23 (5) ◽  
pp. 533-538
Author(s):  
A. V. Zhuk ◽  
A. Ya. Gorenberg ◽  
V. A. Topolkaraev ◽  
V. G. Oshmyan
Keyword(s):  
Composite Material ◽  
Elastoplastic Matrix ◽  
Filled Composite

scholarly journals Natural Fiber Filled Composite Material

2008 ◽  
Vol 64 (11) ◽  
pp. P.359-P.359
Author(s):  
HIROYUKI HAMADA
Keyword(s):  
Composite Material ◽  
Natural Fiber ◽  
Filled Composite

Study of the Destructive Properties of Biodegradable Wood-Filled Composite Material

2020 ◽  
Vol 992 ◽  
pp. 290-295
Author(s):  
Nour R. Galyavetdinov ◽  
G.A. Talipova ◽  
Ruslan R. Safin
Keyword(s):  
Mechanical Properties ◽  
Thermal Stability ◽  
Composite Material ◽  
Food Industry ◽  
Thermal Modification ◽  
Maximum Amount ◽  
Promising Alternative ◽  
Biodegradable Composite ◽  
Green Polymers ◽  
Filled Composite

To date, excessive use of non-degradable petrochemical-based polymers has resulted in a serious threat to the environment. In this regard, in recent years, green polymers are receiving more and more attention, because they are biocompatible, biodegradable and resistant in nature. Among these biopolymers, polylactide is considered the most promising alternative to traditional polymers due to its good biodegradability, biocompatibility and thermal stability, acceptable mechanical properties and excellent processability. This article has developed a biodegradable composite material based on polylactide and wood filler, subject to thermal modification. It was established that the addition of the maximum amount of vegetable filler reduces the time of decomposition of the composite, as a result of which it can be used in the packaging, food industry, as well as in agriculture and in everyday life.

Preliminary Histopathological Study of a New Quartz-Filled Composite Dental Restorative Material

1971 ◽  
Vol 50 (2) ◽  
pp. 474-478 ◽  
Author(s):  
Robert J. Adams ◽  
Geoffery H. Lord
Keyword(s):  
Composite Material ◽  
Rhesus Monkeys ◽  
Downward Trend ◽  
Histopathological Study ◽  
Restorative Material ◽  
Significant Downward Trend ◽  
Significant Difference ◽  
Dental Restorative ◽  
Filled Composite

An experimental composite dental restorative material was studied histologically by means of restorations, with and without cavity liners, in the teeth of rhesus monkeys. A commercially available composite material, with liner, was used for comparison. There was a definite, statistically significant, downward trend of pulpal response with time for all materials tested, although there was no significant difference among them. The experimental restorative appeared to produce no more pulpal response without a liner than when liners were used.

Atomic structure of interface of intermetallic compound TiAl and nitride Ti2AIN using HREM and image processing

1991 ◽  
Vol 49 ◽  
pp. 570-571
Author(s):  
E. Sukedai ◽  
H. Mabuchi ◽  
H. Hashimoto ◽  
Y. Nakayama
Keyword(s):  
Mechanical Properties ◽  
Image Processing ◽  
Composite Material ◽  
Intermetallic Compound ◽  
Side Surface ◽  
High Resolution Electron Microscopy ◽  
Hexagonal Structure ◽  
Second Phase ◽  
Resolution Electron ◽  
Compound Tial

In order to improve the mechanical properties of an intermetal1ic compound TiAl, a composite material of TiAl involving a second phase Ti2AIN was prepared by a new combustion reaction method. It is found that Ti2AIN (hexagonal structure) is a rod shape as shown in Fig.1 and its side surface is almost parallel to the basal plane, and this composite material has distinguished strength at elevated temperature and considerable toughness at room temperature comparing with TiAl single phase material. Since the property of the interface of composite materials has strong influences to their mechanical properties, the structure of the interface of intermetallic compound and nitride on the areas corresponding to 2, 3 and 4 as shown in Fig.1 was investigated using high resolution electron microscopy and image processing.

The microstructure of a TiB2/Ti-47 Al composite material

1989 ◽  
Vol 47 ◽  
pp. 674-675
Author(s):  
O. Popoola ◽  
A.H. Heuer ◽  
P. Pirouz
Keyword(s):  
Composite Material ◽  
Ion Beam ◽  
Chemical Properties ◽  
Intermetallic Alloys ◽  
Transmission Electron ◽  
Diamond Polishing ◽  
Al Composite ◽  
The Matrix ◽  
Argon Ion ◽  
And Chemical Properties

The addition of fibres or particles (TiB2, SiC etc.) into TiAl intermetallic alloys could increase their toughness without compromising their good high temperature mechanical and chemical properties. This paper briefly discribes the microstructure developed by a TiAl/TiB2 composite material fabricated with the XD™ process and forged at 960°C.The specimens for transmission electron microscopy (TEM) were prepared in the usual way (i.e. diamond polishing and argon ion beam thinning) and examined on a JEOL 4000EX for microstucture and on a Philips 400T equipped with a SiLi detector for microanalyses.The matrix was predominantly γ (TiAl with L10 structure) and α2(TisAl with DO 19 structure) phases with various morphologies shown in figure 1.

Application of pyrometer and standard sample to determine surface temperature of studied materials

2019 ◽  
pp. 9-13
Author(s):  
V.Ya. Mendeleyev ◽  
V.A. Petrov ◽  
A.V. Yashin ◽  
A.I. Vangonen ◽  
O.K. Taganov
Keyword(s):  
Composite Material ◽  
Surface Temperature ◽  
Relative Error ◽  
Wavelength Range ◽  
Standard Sample ◽  
A Priori ◽  
Temperature Changes ◽  
Surface Temperatures ◽  
Relative Errors ◽  
Normal Emissivity

Determining the surface temperature of materials with unknown emissivity is studied. A method for determining the surface temperature using a standard sample of average spectral normal emissivity in the wavelength range of 1,65–1,80 μm and an industrially produced Metis M322 pyrometer operating in the same wavelength range. The surface temperature of studied samples of the composite material and platinum was determined experimentally from the temperature of a standard sample located on the studied surfaces. The relative error in determining the surface temperature of the studied materials, introduced by the proposed method, was calculated taking into account the temperatures of the platinum and the composite material, determined from the temperature of the standard sample located on the studied surfaces, and from the temperature of the studied surfaces in the absence of the standard sample. The relative errors thus obtained did not exceed 1,7 % for the composite material and 0,5% for the platinum at surface temperatures of about 973 K. It was also found that: the inaccuracy of a priori data on the emissivity of the standard sample in the range (–0,01; 0,01) relative to the average emissivity increases the relative error in determining the temperature of the composite material by 0,68 %, and the installation of a standard sample on the studied materials leads to temperature changes on the periphery of the surface not exceeding 0,47 % for composite material and 0,05 % for platinum.

Sorption and catalytic properties of a composite material based on bentonite clay and polyethylene glycol

2019 ◽  
Vol 128 (3) ◽  
pp. 82-93
Author(s):  
N.D. Nurtazina ◽  
◽  
G.A. Seilkhanova ◽  
D.N. Akbayeva ◽  
A.N. Imangaliyeva ◽  
...  
Keyword(s):  
Composite Material ◽  
Polyethylene Glycol ◽  
Catalytic Properties ◽  
Bentonite Clay

A method for determining the natural moisture content of dentin in a clinical setting

2020 ◽  
Vol 1 (12) ◽  
pp. 36-39
Author(s):  
L. V. Iyashvili ◽  
Yu. A. Vinnichenko ◽  
A. V. Vinnichenko
Keyword(s):  
Composite Material ◽  
Moisture Content ◽  
Computer Program ◽  
Clinical Setting ◽  
Quantitative Assessment ◽  
Critical Mass ◽  
Filling Material ◽  
Adhesive Interaction ◽  
Natural Moisture Content ◽  
Hard Tissues

The purpose of the study is a quantitative assessment of the yield of dentinal fluid on the surface of the treated dentin of the tooth when restoring its structure with a composite filling material. To achieve this goal, digital images of the coronal parts of the teeth having formed carious cavities were used; virtual models of hard tissues of teeth recreated using specialized computer programs; A computer program that provides the ability to accurately determine the area of the treated dentin tooth. The results made it possible to draw the following conclusions: with an increase in the depth of the carious cavity, the amount of dentin fluid that can stand out on its surface (1–2 mm from the tooth cavity) sharply increases; with an increase in the area of the formed carious cavity (more than 30 mm2), the risk of release of a critical mass of dentinal fluid (more than 0.4 mg), which can adversely affect the strength of the adhesive interaction between the composite material and the hard tissues of the tooth, increases significantly; the same dynamics is observed with increasing time, at which there is the possibility of free exit of dentinal fluid to the surface of the cavity prepared for filling (more than 45 seconds).

Sign in / Sign up

Export Citation Format

Share Document