Data Sheets
BSCCO 2-2-1-2 (SCP 99.9%) Powders
Scope:
This product data sheet characterizes Bismuth Strontium Calcium Copper
Oxide or BSCCO-2212, SCP, 99.9% purity, powders produced by SCI Engineered
Materials (SCI). The following information is not a specification; however,
it may prove useful to the customer in developing a formal product specification.
General Description:
The superconducting BSCCO-2212 SCP powders are prepared from a intimately
mixed precursor powder produced by an ultrasonically assisted co-precipitation
method.
Soluble metallic compounds (typically nitrates) are dissolvedin water
then precipitated using an ultrasonically assisted precipitation process
licensed from Sandia National Labs. Phase pure, low carbon content superconducting
powder is obtained by using a low pressure calcination method. The low
processing temperatures employed in this method results in powders with
fine particle size.
Schematics of Co-precipitation Process
The precursor is prepared from 99.9% purity Bi2O3, SrCO3, CaCO3, Cu(NO3)2
dissolved in HNO3 acid. Powders prepared using this process are more chemically
homogenous and exhibit finer particle sizes than powders prepared using
the traditional solid state method. Powders with customized stochiometry
and dopings are also available on request.
Typical x-ray diffraction pattern, thermal analysis,
and physical/chemical properties are given below.
Handling Instructions:
To maintain a low carbon levels it is recommended that the powders be
handled only under a carbon free atmosphere. Other handling instructions
are included in the enclosed MSDS sheet.
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