On an apparatus for measuring very high pressures
نویسندگان
چکیده
منابع مشابه
An apparatus for studying scintillator properties at high isostatic pressures.
We describe the design and operation of a unique hydraulic press for the study of scintillator materials under isostatic pressure. This press, capable of developing a pressure of a gigapascal, consists of a large sample chamber pressurized by a two-stage hydraulic amplifier. The optical detection of the scintillation light emitted by the sample is performed, through a large aperture optical por...
متن کاملNew Methods for Investigating Superconductivity at Very High Pressures
1. – Introduction As a result of rapid developments in diamond-cell techniques, a broad range of studies of the physical and chemical properties of solids can be now conducted in situ to megabar pressures (i.e., > 100 GPa). The highest superconducting T c has been achieved by application of pressure of ∼ 30 GPa on HgBa 2 Ca 2 Cu 3 O 8+δ giving critical superconducting temperature of 164 K [3]. ...
متن کاملRaman Scattering of Metals to Very High Pressures
The study of the effect of pressure on materials is fundamental to a range of problems in physics (e.g., Ref. [1]). With increasing pressure, the distances between atoms normally decrease, which leads to the increase of interparticle interactions. Thus, by changing the pressure, one can tune the physical properties of materials and observe corresponding changes in the vibrational, electronic an...
متن کاملA GLASS ELECTRODE APPARATUS FOR MEASURING THE pH VALUES OF VERY SMALL VOLUMES OF SOLUTION
A glass electrode apparatus is described with which pH measurements can be made with as small volumes as 2 drops (about 0.14 cc.) of solution. Using this apparatus the change of pH of the vacuolar sap of Nitella, due to the penetration of brilliant cresyl blue, has been readily followed. The sap and the dye have been found to poison the usual type of hydrogen electrode.
متن کاملAn indigenously designed apparatus for measuring orthodontic force.
AIM An indigenous apparatus is designed to measure the orthodontic force delivered from elastomeric chains and compare this force with values obtained from the Instron universal testing machine. MATERIAL AND METHODS An indigenously designed apparatus is developed to evaluate forces delivered by various orthodontic auxiliaries. The apparatus consists of a flat steel platform, movable arm, and ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: American Journal of Science
سال: 1898
ISSN: 0002-9599
DOI: 10.2475/ajs.s4-6.36.451