Published April 2003 | Version v1
Journal article Metadata-only

Effect of HfN microadditions on the microstructure and super conducting properties of (Bi,Pb)2Sr2Ca2Cu3O10+x ceramics

Creators

  • 1. RAN, Inst. Metallurgii i Materialovedeniya im. A.A. Bajkova, Moscow (Russian Federation)
  • 2. Moskovskij Gosudarstvennyj Univ. im. M.V. Lomonosova, Moscow (Russian Federation)
  • 3. Moskovskij Inzhenerno-Fizicheskij Inst. (Gosudarstvennyj Univ.), Moscow (Russian Federation)
  • 4. Gosudarstvennyj Nauchno-Issledovatel'skij Inst. Redkometallicheskoj Promyshlennosti, Moscow (Russian Federation)

Description

Interaction of ultradispersed hafnium nitride with Bi-2223 in the process of high-temperature sintering (840-850 deg C), morphology of superconducting matrix grains and precipitations, density of ceramics, were studied. Chemical composition of the phases, specific features of magnetic field permittivity dynamics, as well as superconducting properties, were considered. The experimental results obtained suggest positive effect of ultradispersed additions of hafnium nitride in the range of concentrations 0.05-0.1 wt. % on critical current density, magnetization, density and thermal stability of Bi-2223 ceramics

Abstract (Russian)

Изучены взаимодействие ультрадисперсного нитрида гафния с Bi-2223 в процессе высокотемпературного спекания (840-850 град С), морфология зерен сверхпроводящей матрицы и выделений, плотность керамики. Исследован химический состав фаз, особенности динамики проникновения магнитного поля, а также сверхпроводящие свойства. Полученные экспериментальные результаты свидетельствуют о положительном влияниии ультрадисперсных добавок, нитрида гафния в области концентраций 0.05-0.1 мас. % на плотность критического тока, намагниченность, плотность и термостабильность керамики Bi-2223

Additional details

Additional titles

Original title (Russian)
Влияние микродобавок нитрида гафния на микроструктуру и свойства сверхпроводящей керамики (Би,Пб)

Publishing Information

Journal Title
Neorganicheskie Materialy
Journal Volume
39
Journal Issue
4
Journal Page Range
p. 462-468
ISSN
0002-337X
CODEN
NEOMB8

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
35081069
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
BISMUTH OXIDES; CALCIUM OXIDES; CERAMICS; COPPER OXIDES; DENSITY; HAFNIUM NITRIDES; HIGH-TC SUPERCONDUCTORS; LEAD OXIDES; MAGNETIC SUSCEPTIBILITY; MAGNETIZATION; MICROSTRUCTURE; SINTERING; STRONTIUM OXIDES; TEMPERATURE RANGE 1000-4000 K
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; BISMUTH COMPOUNDS; CALCIUM COMPOUNDS; CHALCOGENIDES; COPPER COMPOUNDS; FABRICATION; HAFNIUM COMPOUNDS; LEAD COMPOUNDS; MAGNETIC PROPERTIES; NITRIDES; NITROGEN COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; PNICTIDES; REFRACTORY METAL COMPOUNDS; STRONTIUM COMPOUNDS; SUPERCONDUCTORS; TEMPERATURE RANGE; TRANSITION ELEMENT COMPOUNDS; TYPE-II SUPERCONDUCTORS

Optional Information

Notes
6 refs., 7 figs., 2 tabs.