Testing of aluminium composite panels in a cone calorimeter: A new specimen preparation method

1967 ◽

Vol 25 ◽

pp. 364-365

Author(s):

R. W. Anderson ◽

D. L. Senecal

Keyword(s):

Electron Microscopy ◽

Transmission Electron Microscopy ◽

Heat Exchanger ◽

Direct Observation ◽

Cross Sections ◽

Preparation Method ◽

Specimen Preparation ◽

Flowing Water ◽

Transmission Electron ◽

Deposit Layer

A problem was presented to observe the packing densities of deposits of sub-micron corrosion product particles. The deposits were 5-100 mils thick and had formed on the inside surfaces of 3/8 inch diameter Zircaloy-2 heat exchanger tubes. The particles were iron oxides deposited from flowing water and consequently were only weakly bonded. Particular care was required during handling to preserve the original formations of the deposits. The specimen preparation method described below allowed direct observation of cross sections of the deposit layers by transmission electron microscopy.The specimens were short sections of the tubes (about 3 inches long) that were carefully cut from the systems. The insides of the tube sections were first coated with a thin layer of a fluid epoxy resin by dipping. This coating served to impregnate the deposit layer as well as to protect the layer if subsequent handling were required.

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Scanning electron microscopy of human iliac bone by a simple preparation method

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100158674 ◽

1990 ◽

Vol 48 (3) ◽

pp. 226-227

Author(s):

Toshihiko Takita ◽

Tomonori Naguro ◽

Toshio Kameie ◽

Akihiro Iino ◽

Kichizo Yamamoto

Keyword(s):

Electron Microscopy ◽

Scanning Electron Microscopy ◽

Preparation Method ◽

Specimen Preparation ◽

Real Surface ◽

Public Attention ◽

Preparation Methods ◽

The Real ◽

Simple Preparation ◽

Scanning Electron

Recently with the increase in advanced age population, the osteoporosis becomes the object of public attention in the field of orthopedics. The surface topography of the bone by scanning electron microscopy (SEM) is one of the most useful means to study the bone metabolism, that is considered to make clear the mechanism of the osteoporosis. Until today many specimen preparation methods for SEM have been reported. They are roughly classified into two; the anorganic preparation and the simple preparation. The former is suitable for observing mineralization, but has the demerit that the real surface of the bone can not be observed and, moreover, the samples prepared by this method are extremely fragile especially in the case of osteoporosis. On the other hand, the latter has the merit that the real information of the bone surface can be obtained, though it is difficult to recognize the functional situation of the bone.

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A New Specimen Preparation Method for Three-Dimensional Atom Probe

e-Journal of Surface Science and Nanotechnology ◽

10.1380/ejssnt.2010.141 ◽

2010 ◽

Vol 8 ◽

pp. 141-144 ◽

Cited By ~ 1

Author(s):

Y. Hanaoka ◽

S. Mikami ◽

N. Mayama ◽

T. Iwata ◽

Y. Kajiwara ◽

...

Keyword(s):

Preparation Method ◽

Three Dimensional ◽

Atom Probe ◽

Specimen Preparation

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Preliminar Assessment of Durability for Aluminium Composite Panels

Construction and Building Research ◽

10.1007/978-94-007-7790-3_55 ◽

2014 ◽

pp. 453-461

Author(s):

E. Lahoz ◽

F. Hernández de Olivares

Keyword(s):

Composite Panels ◽

Aluminium Composite

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A model for the composite nanostructure of bone suggested by high-resolution transmission electron microscopy

Mineralogical Magazine ◽

10.1180/0026461036760156 ◽

2003 ◽

Vol 67 (6) ◽

pp. 1171-1182 ◽

Cited By ~ 17

Author(s):

B. A. Cressey ◽

G. Cressey

Keyword(s):

Electron Microscopy ◽

Transmission Electron Microscopy ◽

High Resolution ◽

Preparation Method ◽

Ion Beam ◽

Human Bone ◽

Specimen Preparation ◽

Transmission Electron ◽

Ancient Bone ◽

Close Analogue

AbstractWe have imaged the spatially-preserved microtexture of biogenic apatite, retained together with its collagen template, in non-demineralized human bone using high-resolution transmission electron microscopy. Using ion-beam thinning, a specimen preparation method generally employed for inorganic minerals rather than for biological materials, we have imaged a composite nanostructure of bone not previously reported, and we propose a model for this nano-architecture that involves a boxconstruction of apatite plates and apatite sheets. This observation provides a new understanding of bone strength at the nanometre scale and suggests how post mortem enhancement of this texture by recrystallization probably accounts for the durability of ancient bone. Modern sheep bone (a close analogue for recently dead human bone) imaged in the same way also shows evidence of this composite architecture.

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