Acasă > listă de emisiuni
Zirconia ceramic beads or moara de margele can be used for a variety of purposes thanks to their unique properties. For instance, they can be used to develop stabilizing agents, molecular biology applications, and microelectronics. Here are a few of these materials' most important characteristics.
Applications requiring low weight and chemical inertness use mărgele ceramice din zirconiu. They are also renowned for their durability and corrosion resistance. These materials do, however, need stabilizing agents added. The toughness of the beads can be improved by these additives.
Stabilizers come in a variety of forms, and they can be added to zirconia. Alumina, hafnia, magnesia, ceria, and yttrium are a few of them. The application and the desired mechanical, thermal, and chemical properties will determine which additives to use.
Zirconia's tendency to crack can be effectively decreased by stabilizing the material with alumina. Yttrium is also advantageous because it aids in stabilizing tetragonal zirconia. It also has the capacity to withstand thermal shock. One of the strongest zirconia ceramics is called YSZ.
Hot pressing is used to create zirconia composites with alumina and yttria stabilization. In this procedure, powdered material is combined with a liquid that is only partially soluble, and the mixture is then pressed into a die. It is a method for creating a controlled matrix microstructure.
These composites have high strength and fracture toughness, making them suitable for a variety of uses. Additionally, they have a managed matrix microstructure. This is accomplished by regulating the alumina gel's nucleation frequency.
Zirconia is a polycrystalline ceramic without glass. It is made up of a tetragonal phase and a monoclinic phase, which features cubic-shaped crystals. The mechanical characteristics and thermal shock resistance of these phases differ considerably. Tetragonal phases are stronger mechanically and have lower elastic moduli.
Alumina-zirconia composites were investigated in the 1980s with bile de frezare din zirconiu. In terms of hardness, indentation fracture resistance, fatigue flexural strength, and biaxial flexural strength, these materials showed statistically significant differences. But the mechanical properties were diminished as a result of the altered microstructure.
ZTA, or alumina-tetragonal stabilized zirconia, began to appear in the 1980s. This substance has three times the fracture energy of alumina while having superior wear resistance. It was Nils Claussen who first proposed the ZTA idea.
The tetragonal phase experiences a 3%u20135% volume expansion, which leads to ZTA. Shear strain increases by 7% during this transition. The hydrostatic crack-pinching force is also increased by two times.
A variation of ZTA is yttria-tetragonal stabilized zirconia (YTZP). The zirconia is thicker and less porous because yttrium has strengthened it.
Applications requiring ultra-fine grinding use zirconia ceramic beads. They are exceptionally tough and have fine grains. Along with having excellent corrosion resistance and superior mechanical strength, these beads are chemically inert.
For use in biomedical applications, partially stabilized zirconia ceramics have been developed. They combine microcracking and the t-M transformation.
Numerous molecular biology applications make use of zirconia ceramic beads. Different bead materials are employed to disrupt and lyse cells depending on the application. The physical characteristics of the sample and the target molecule are used to determine the bead material for bilă de măcinare ceramică din zirconiu.
The sizes and shapes of biological samples vary widely. There are different levels of density. Determining the type of bead material to be used also requires consideration of the sample density. Low shear conditions are best suited for materials that are less dense than the sample, such as silicon carbide. These beads, however, are less hardy and may break strong samples.
Ceramic beads made of zirconia come in three varieties. Each type has a unique chemical make-up. This is crucial for figuring out how the sample will turn out after being ground up. These materials can be combined to increase the pulverizing effect.
Acid-washed Triple-Pure zirconia beads are perfect for molecular biology applications. These beads are guaranteed to be nuclease-free by acid washing. They are suitable for PCR as well.
The density of zirconium oxide is extremely high. As a result, it might be a desirable material for lysing and grinding tough samples. It has also been utilized for surface supports and luminescent materials. Zirconia beads stabilized with yttrium are also offered.
Tencan has a manufacturing plant that covers 220,000 sq. meters and an R&D center measuring 22,000 sq. meters. Tencan can satisfy all demands of its customers in complete terms for bile de moară din zirconiu. Tencan has obtained more than 30 patents and cooperates with 20 doctors from five well-known universities.
The main business of the company is powder equipment manufacture technology, as well as powder materials. Our current products include laboratory planetary mills crushing, milling machines and screening, mixing, stirring and other equipment.
The company has passed ISO9001 Quality Management System, CE, SGS, and other certifications for systems as well as obtaining more than 40 patents on core technologies with exclusive intellectual property rights. The government has certified it as a high-tech company located in Hunan Province for bile de măcinare din zirconiu.
The main customer groups are universities, research institutes, and technology-based enterprises, serving 20,000+ customers worldwide, and exporting to 60+ countries.
EN 
NL
FR
DE
HI
IT
KO
PL
PT
RU
ES
TR
AR
BG
HR
CS
DA
FI
EL
JA
NO
RO
SV
IW
ID
LV
LT
SR
SK
SL
UK
VI
ET
HU
UZ
TH
FA
MS
BE
HY
AZ
KA
MN
MY
KK
TG
