SCIENTIFIC RESEARCH AND DEVELOPMENT
RESEARCH IN THE AREA OF PREPARING MATERIALS
BASED ON FUZED QUARTZ HCBS. PART 1. COMPARATIVE EVALUATION
AND DISTINGUISHING FEATURES OF QUARTZ CERAMIC
AND REFRACTORY TECHNOLOGY
Yu. E. Pivinskii
and P. V. Dyakin
Translated from Novye Ogneupory, No. 7, pp. 33 – 40, July 2014.
Original article submitted May 16, 2014.
The main production processes and preparation parameters are specified for materials based on fuzed quartz
HCBS applied to both engineering ceramics and also a broad range of refractories. The fundamental differ
ences between production technology for these groups of materials consists of raw material purity (cost),
HCBS preparation conditions, molding system fineness, and molding methods. Technical and economic as-
pects of the technologies used are considered.
Keywords: fuzed quartz, quartz glass, quartz ceramic, crystallization, cristobalite, slip casting, centrifugal
molding, HCBS volume concentration.
A requirement for creating ceramic materials based on
fuzed quartz (transparent or opaque quartz glass) has given
rise to exceptional production complications in manufactur
ing large objects of complex shape of these materials by nor
mal glass technology [1 – 3]. Systematic research started in
this field in the 1960s [1 – 4]. The authors of an article 
suggested for the first time the name “quartz ceramics” for a
whole group of materials based on glassy and amorphous sil
ica, prepared by ceramic technology. Recently this term has
become generally accepted in domestic publications [1 – 10].
The contemporary level of development of technology
makes it possible to prepare quartz ceramics with a different
range of porosity. As an example it is possible to cite not
only high-speed rocket cones of high-density ceramic or me
dium-density refractories, but also preparation of highly po
rous heat insulating materials used for flying equipment of
the “Shuttle” and “Buran” types. These materials are pre
pared from dispersed or ground quartz glass fiber (slip-fiber
molded systems). As follows from Fig. 1, material porosity
may vary within the limits 0.2 – 90% [2, 3]. Numerous mate-
rials of the class in question with respect to fields of applica-
tion are very conditionally classified as ceramics and
refractories. A typical example of use of the latter is numer
ous components for metallurgy and the glass industry.
In the first stage of quartz ceramic technology develop
ment (1960s – 1970s) the most important task of creating
fundamentally new structural materials was determined, hav
ing unique properties for high-speed rocket technology, in
particular cones for a new generation of high-speed rockets
[2, 3, 5 – 8]. In addition, in the 1970s in view of develop
ment within the USSR of continuously cast steel a no less
important technical and economic problem arose, concerning
development of technology and creation of mass production
of thermally stable steel-pouring refractories for CBCM
[2, 3, 5 – 8]. It was suggested not without foundation that
this target could be resolved due to improvement and intensi
fication of then existing technology for engineering quartz
and ceramic . According to this in 1970 in this field not
only was preliminary research carried out, but also favorable
results were achieved for industrial tests of nozzle dispensers
for continuous steel casting , obtained by the then avail
able quartz ceramic technology .
Refractories and Industrial Ceramics Vol. 55, No. 4, November, 2014
1083-4877/14/05504-0311 © 2014 Springer Science+Business Media New York
OOO NVF Kerambet-Ogneupor, St Petersburg, Russia.
FGBOU VPO St Petersburg State Technological Institute (Tech
nical University), St Petersburg, Russia.