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Zirconia series (Zirconia, Zro2)3
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Zirconia series (Zirconia, Zro2)

Engineered with specific stabilizers (Y2O3 or MgO) to tailor phase structures. Our portfolio includes high-strength Y-TZP, hydrothermally stable Mg-PSZ, and fully stabilized Y-FSZ for extreme chemical environments (pH 0–14).

Specifications and Description

Renowned as "Ceramic Steel" for its exceptional fracture toughness, Rauschert Zirconia series is engineered with specialized stabilizers (Y2O3 or MgO) to tailor phase structures for specific demanding environments.

1. Zirconia Y (Y-TZP)
Zirconia Y utilizes transformation toughening to achieve superior mechanical strength. Under stress, tetragonal grains transform into the monoclinic phase; the resulting 3–5% volume expansion creates compressive stress that effectively "clamps" micro-cracks and prevents propagation. Its sub-micron, high-density grain structure allows for a mirror-grade finish, significantly reducing friction coefficients and extending wear life. It is available in white or black for premium aesthetics or light-shielding industrial applications.

2. Zirconia M (Mg-PSZ)
Zirconia M (Mg-PSZ) is the preferred choice for heavy-duty mechanical applications due to its superior stability under high temperature, high pressure, and humidity. Its microstructure—fine tetragonal precipitates within a cubic matrix—effectively inhibits spontaneous phase transformation and surface deterioration.

  • Hydrothermal Stability: Unlike Y-TZP, Mg-stabilized material maintains structural integrity in saturated steam or autoclave environments, resisting Low-Temperature Degradation (LTD).
  • Thermal Expansion: Its CTE closely matches most steel alloys, minimizing stress from thermal expansion mismatches.
  • Processing Versatility: Supports pressing, extrusion, and injection moulding (CIM) for manufacturing high-precision components with complex geometries.

3. Zirconia Y-FSZ (Fully Stabilized)
Distinguished by its porous structure, Zirconia Y-FSZ remains in a stable cubic phase from sintering to room temperature due to high yttria content (approx. 8 mol%). This structure eliminates phase transformation toughening in favor of exceptional high-temperature dimensional stability, preventing cracks during thermal cycling.
  • Extruded Solutions: Primarily manufactured via extrusion into tubes or rods.
  • Chemical & Thermal Resilience: Offers full-spectrum chemical resistance (pH 0–14) and functions as an ideal microfiltration membrane or catalyst carrier. The porous architecture effectively absorbs thermal shock energy, mitigating the risk of catastrophic failure from thermal stress.

Product Table

材料名稱

Material

主成分

Main Content

(%)

抗彎曲強度

3-Point-Flexural Strength

(MPa)

維氏硬度

Vickers Hardness

(HV)

斷裂韌性

Fracture Toughness SEVNB

(Mpa·m1/2​)

CTE 30-600℃

(10-6 K-1)

熱導率

Thermal Conductivity at RT

(W/mK)

抗熱衝擊性

Thermal Shock Resistance

(K)

室溫下的體積電阻率

Specific Volume Resistivity at RT (Ω·cm)

Zirconia Y

ZrO2 : Y
100%

>1100 (3 P.B.)

1280 [HV 0.1]
1250 [HV 10]

6.5

9.5-10.5

2.9

250

10^12

Zirconia M

ZrO2​ : Mg
100%

>570 (3 P.B.)

1050 [HV 0.1]

7.8

9.5-10.5

3

250

10^13

Zirconia Y-FSZ

ZrO2​ / Y2O3
>85% / 13.5%

N/A

N/A

N/A

11

Open Porosity: 25-35%
Pore Dia: 0.2-0.8μm
Chemical Resistance: 0-14 pH

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