Machinable High Precision Yttria Stabilized Square Zirconia / ZrO2 Ceramic Bar
Specification of ceramic bar:
1. Forming method: Extruding, Dry pressed, Ceramic injection molding and ISO pressing
2. Material options: YSZ zirconia, TTZ zirconia, 95~99.5% alumina, Silicon carbide (SiC)
3. Specification: Available outer from 1mm to 50mm, available length from 3mm to 2000mm
4. The typical shape of the ceramic bar: round, square, rectangular, oval, flat and so on
4. Tolerance A: Diameter below 12.5mm, tolerance ± 3% or ± 0.076 mm, whichever is greater. Straightness: camber / length < 0.003
5. Tolerance B: Diameter above 12.5mm, tolerance ± 5% or ± 0.76 mm, whichever is greater. Straightness: ≤ 0.006″/1.000″ cumulative
6. Surface finish: the working surface to be diamond polished up to Ra0.1, or better
Prime features of zirconia ceramic bar:
1. High hardness, over than 1300 MPa for Vicker
2. Can withstand higher temperatures up to 2400°
3. Higher density than most of technical ceramics, over than 6 g/cm3
4. Exceptional fracture toughness reaches up to 8 Mpa m1/2
5. Low thermal conductivity, less than 3 W/m.k at room temperature
6. Chemical inertness, not interact with almost all strong acid and alkali
7. Resistance to molten metals due to an extraordinary melting point
8. Good Wear resistance, over 276 times than stainless steel
Application of zirconia ceramic bar:
Zirconia ceramic rod/bar is used in the shaft, plunger, automobile Industrial, sealing structure, oil drilling equipment, Insulation parts in electrical equipment, electronic engineering, industrial machinery, and ceramic hair clipper spare parts, with high density, bending strength and breaking tenacity.
Description of zirconia ceramic bar:
Zirconium oxide (Zirconia) is an exceptional heat resistant material. It possesses excellent chemical inertness and chemistry resistance at high temperatures up to 2200℃, well above the melting point of alumina. Zirconia is stabilized in the cubic crystal structure to avoid cracking and mechanical weakening during heating and cooling. It's always an ideal option for high pressure, easily breakage application.
Zirconia ceramic rods/bars have the advantages of super hardness, high wear-resisting, high-temperature tolerance, good corrosion resistance, very low friction coefficient, high strength, high mechanical strength, good chemical stability, polishing surface and so on. All these ceramic components can offer high dimensional accuracy, mirror surface, and stringent straightness via fine grinding and diamond polishing.
We have been supplying with many selections of regular diameters with custom lengths, also we are capable of producing various of special shapes, customized diameters in specific materials.
Gallery of zirconia ceramics
We produce various zirconia ceramic bars in different configurations with special design, like round bar, oval rod and so on.
Datasheet of Technical ceramics
| Property | Units | Material |
| 99.5% alumina | 99%alumina | 95% alumina | ZrO2
(Y-TZP) | ZrO2 (TTZ) |
| Density | g/cm3 | ≥3.85 | ≥3.80 | ≥3.60 | ≥5.95 | ≥5.72 |
| Water absorption | % | 0 | 0 | 0 | 0 | 0 |
| Hardness | HV | 1700 | 1700 | 1500 | 1300 | 900 |
| Flexural strength | Mpa | ≥379 | ≥338 | ≥320 | ≥1200 | ≥1200 |
| Compressive strength | Mpa | ≥2240 | ≥2240 | ≥2000 | ≥1990 | 1750 |
| Fracture toughness | Mpa m1/2 | 4-5 | 4-5 | 3-4 | 6.5-8 | 11 |
Max. service
temperature | ℃ | 1675 | 1600 | 1450 | 1000 | |
| CTE | 1×10 -6 /℃ | 6.5~8.0 | 6.2~8.0 | 5.0~8.0 | 8.0~9.5 | 10.2 |
| Thermal shock | T(℃) | ≥250 | ≥200 | ≥220 | ≥300 | 350 |
| Thermal conductivity(25℃) | W/m.k | 30 | 29 | 24 | 3 | 3 |
| Volume resistivity | ohm.cm | | | | | |
| 25℃ | ＞1 x 10 14 | ＞1 x 10 14 | ＞1 x 10 14 | ＞1 x 10 11 | ＞1 x 10 11 |
| 300℃ | 1 x 10 12 | 8 x 10 11 | 10 12 -10 13 | 1 x 10 10 | 1 x 10 10 |
| 500℃ | 5 x 10 10 | 2 x 10 9 | 1 x 10 9 | 1 x 10 6 | 1 x 10 6 |
| Insulation strength | KV/mm | 19 | 18 | 18 | 17 | 20 |
| Dielectric constant(1Mhz) | (E) | 9.7 | 9.5 | 9.5 | 29 | 28 |
Manufacturing flow chart of ceramic bar
We have in-housing comprehensive manufacturing types of equipment, including forming, sintering, CNC machining,
precision grinding, laser cutting and so on, it helps us to control the quality very well, also it greatly benefits cost control.
Packaging proposal and transportation solutions
1. We will keep the ceramic parts inside the inner package to be fixed without moving, then it will prevent them from collision each other,
to avoid any cause any chippings during transportation.
2. In addition, the inside of the outer carton will be filled with sufficient protective kinds of stuff.
Why choose us?
★ 10+ Years of manufacturing experience in OEM, ODM ★ Powerful R&D, mass production capability
★ In-house comprehensive manufacturing types of equipment ★ Rigorous quality control system and processes
★ Surpassing pre-sales and after-sales service ★ Abide all orders as the first priority
FAQs(Frequently asked questions)
Q1. Are you a factory or trading company?
A: We are a manufacturer. You are welcome to visit our factory.
Q2: Do you send a sample to check?
A: Sure, the sample is free and freight collect.
Q3: When will you ship it?
A: If the products are in storage, we'll ship within 48 hours
Q4: When can I get the price?
A: We regularly quote within 24 hours after we get your inquiry. If you are in urgent need of getting the price.
Please call us or tell us in your email so that we will proceed with your inquiry as a priority.
Q5: Is it available to provide customized products?
A: We always support custom-made demand as per different materials, dimensions, and designs.
Q6: How to ensure quality?
A: The dimension out of any batch will be carried out sampling inspection per international AQL standard. A 100% cosmetic inspection will be done.
Q7: What other products are you dealing with?
A: We focus on a variety of ceramic tubes, ceramic substrates, ceramic sheets, textile ceramics besides metalized ceramics.
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