Connect with us

Metal

Characterization of the nanocomposite laminate structure occurring in fish scales from Arapaima Gigas

Sign up or log in to your free Materials Today account to download the full article.

In the present paper, the nanocomposite laminate structure of scales from the Amazonian fish Arapaima Gigas is investigated. The structure and composition of the scales were assessed by means of X-ray diffraction (XRD) and Fourier Transform Infrared spectroscopy (FTIR). The theory of Fickian diffusion is used and discussed in order to rationalize the water absorption and desorption behavior of the scales. Morphology studies and fracture analysis of the native scales were carried out using Transmission Electron Microscopy (TEM), Light Optical Microscopy (LOM) and Scanning Electron Microscopy (SEM). A fibrous layer of collagen and a plywood-like structure were observed. In order to study the mineral phase, the native scales were burned at 600 °C until all the organic components were degraded. The remaining ashes were then observed under the microscope and weighed to determine ratio of organic and inorganic components. The mechanical behavior of dry and wet scales was assessed by tensile tests and the effect of water in mechanical properties is also discussed.

This article originally appeared in Materials Science and Engineering: C? 28, 2008, Pages 1276-1283.

Sign up or log in to your free Materials Today account to download the full article.

Republished by Plato

Published

on

Sign up or log in to your free Materials Today account to download the full article.

In the present paper, the nanocomposite laminate structure of scales from the Amazonian fish Arapaima Gigas is investigated. The structure and composition of the scales were assessed by means of X-ray diffraction (XRD) and Fourier Transform Infrared spectroscopy (FTIR). The theory of Fickian diffusion is used and discussed in order to rationalize the water absorption and desorption behavior of the scales. Morphology studies and fracture analysis of the native scales were carried out using Transmission Electron Microscopy (TEM), Light Optical Microscopy (LOM) and Scanning Electron Microscopy (SEM). A fibrous layer of collagen and a plywood-like structure were observed. In order to study the mineral phase, the native scales were burned at 600 °C until all the organic components were degraded. The remaining ashes were then observed under the microscope and weighed to determine ratio of organic and inorganic components. The mechanical behavior of dry and wet scales was assessed by tensile tests and the effect of water in mechanical properties is also discussed.

This article originally appeared in Materials Science and Engineering: C? 28, 2008, Pages 1276-1283.

Sign up or log in to your free Materials Today account to download the full article.

Source: https://www.materialstoday.com/biomaterials/features/characterization-of-the-nanocomposite-laminate/

Metal

Teijin launches new carbon fiber brands

Tenax PW (power series) and Tenax BM (beam series) brands are suitable for sports applications.
Tenax PW (power series) and Tenax BM (beam series) brands are suitable for sports applications.

Teijin has launched its new Tenax PW (power series) and Tenax BM (beam series) brands of carbon fiber intermediate materials for sports applications.

According to the company, Tenax PW is an aircraft-quality material made of  high-tensile-modulus resin that can help maximize power and speed due to its improved durability and toughness. The material can also suppres and absorb impact forces to minimize and localize damage after impact. Teijin says that its compressive strength is better than that of the company’s standard carbon fiber prepregs.

Tenax BM is suitable for applications requiring flexibility and resistance to thermal expansion due to its improved rigidity, straightness, operability and stability. The material also offers improved vibration damping (suppression and absorption), achieving four times greater damping than that of Teijin’s standard carbon fiber prepregs, the company said.

This story uses material from Teijin, with editorial changes made by Materials Today. The views expressed in this article do not necessarily represent those of Elsevier.

Republished by Plato

Published

on

Tenax PW (power series) and Tenax BM (beam series) brands are suitable for sports applications.
Tenax PW (power series) and Tenax BM (beam series) brands are suitable for sports applications.

Teijin has launched its new Tenax PW (power series) and Tenax BM (beam series) brands of carbon fiber intermediate materials for sports applications.

According to the company, Tenax PW is an aircraft-quality material made of  high-tensile-modulus resin that can help maximize power and speed due to its improved durability and toughness. The material can also suppres and absorb impact forces to minimize and localize damage after impact. Teijin says that its compressive strength is better than that of the company’s standard carbon fiber prepregs.

Tenax BM is suitable for applications requiring flexibility and resistance to thermal expansion due to its improved rigidity, straightness, operability and stability. The material also offers improved vibration damping (suppression and absorption), achieving four times greater damping than that of Teijin’s standard carbon fiber prepregs, the company said.

This story uses material from Teijin, with editorial changes made by Materials Today. The views expressed in this article do not necessarily represent those of Elsevier.

Source: https://www.materialstoday.com/composite-applications/news/teijin-launches-new-carbon-fiber-brands/

Continue Reading

Metal

Japan’s steel scrap exports down 23.5 percent in January

In January this year, Japanese ferrous scrap exports amounted to 500,986 mt.

Republished by Plato

Published

on

In January this year, Japanese ferrous scrap exports amounted to 500,986 mt, falling by 23.5 percent compared to 655,234 mt in the same month of the previous year, according to customs statistics.

During the given month, Vietnam was the biggest importer of Japanese scrap, importing 204,149 mt, down by 4.2 percent year on year. Vietnam was followed by South Korea and Taiwan, importing 155,792 mt and 76,844 mt of scrap, down 43.5 percent and down 7.7 percent, respectively, year on year.

Meanwhile, Japanese scrap exports to Bangladesh decreased to 31,782 mt in January, down from 43,419 mt in the previous year.

Source: https://www.steelorbis.com/steel-news/latest-news/japans-steel-scrap-exports-down-235-percent-in-january-1188314.htm

Continue Reading

Metal

Japan’s steel scrap exports down 23.5 percent in January

In January this year, Japanese ferrous scrap exports amounted to 500,986 mt.

Republished by Plato

Published

on

In January this year, Japanese ferrous scrap exports amounted to 500,986 mt, falling by 23.5 percent compared to 655,234 mt in the same month of the previous year, according to customs statistics.

During the given month, Vietnam was the biggest importer of Japanese scrap, importing 204,149 mt, down by 4.2 percent year on year. Vietnam was followed by South Korea and Taiwan, importing 155,792 mt and 76,844 mt of scrap, down 43.5 percent and down 7.7 percent, respectively, year on year.

Meanwhile, Japanese scrap exports to Bangladesh decreased to 31,782 mt in January, down from 43,419 mt in the previous year.

Source: https://www.steelorbis.com/steel-news/latest-news/japans-steel-scrap-exports-down-235-percent-in-january-1188314.htm

Continue Reading
Heartland1 day ago

CBD Vape Oil Market 2021: Global Trends, Business Overview, Challenges, Opportunities …

Heartland4 days ago

Uncategorized5 days ago

What CBD Oil is Right For Me?

Heartland4 days ago

CBD Oil for Beginners

Heartland4 days ago

Heartland4 days ago

Heartland5 days ago

Registration opens for consumable hemp manufacturers and retailers

Heartland2 days ago

Industrial Hemp in Automotive Market Estimated Forecast Analysis 2021-2030

Material2 days ago

Microstructure, characterization of interfacial phases and mechanical properties of high Nb–TiAl/Al2O3 joints brazed by novel Nb particle-reinforced Ag–Cu filler alloy

Heartland5 days ago

CBD Skincare Products Are Popping Up Everywhere — But Do They Actually Work?

Heartland4 days ago

CBP Can't Block Parts Imports, Hemp Machinery Co. Says

Heartland3 days ago

8 of the best cannabis gummies to try right now

Heartland3 days ago

National Hemp Association Awards First Recipients of Social Equity Conscious Business (SECB …

Heartland2 days ago

Drew Carey CBD – How Does It Work For Body Pain

Heartland5 days ago

Heartland4 days ago

Sunnyvale Labs CBD Gummies — Instant Pain Relief Hemp Gummies!

Heartland4 days ago

Heartland4 days ago

Heartland5 days ago

Thc causes me anxiety will cbd be fine? I have the tincture but nervous to try it also how much mg of cbd should i start with for a first dose?

Heartland5 days ago

Material5 days ago

IMC microstructure modification and mechanical reinforcement of Sn–Ag–Cu/Cu microelectronic joints through an advanced surface finish technique

Heartland5 days ago

Hemp Is Creating an EcoRevolution

Heartland5 days ago

CBD to combat physcoactive properties in THC

Heartland4 days ago

Acreage Holdings to Sell Florida Cannabis Operations to Red White & Bloom for $60 Million

Heartland4 days ago

Heartland5 days ago

Former Eaze CEO Pleads Guilty In Bank Fraud Case

Material5 days ago

A new approach of predicting dynamic recrystallization using directly a flow stress model and its application to medium Mn steel

Heartland4 days ago

How CBD Can Help You Live A Healthy Lifestyle, With Medical Marijuana Management Team …

Uncategorized4 days ago

The Daily Hit: The February 25th, 2021

Heartland5 days ago

Ardent Life: A Company Revolutionizing Cannabis Technology

Trending

A Cloud Nine Capital Entity Copyright © 2020 – All Rights Reserved Proudly Made in America