Ceramic Body: Outer Diameter 2.499±0.0005mm, Hardness >1200 HV

Component Specifications

Definition

A ceramic body is the core structural component of a precision fiber optic ferrule, typically made from zirconia (ZrO2) or alumina (Al2O3). It features an ultra-precise central bore (typically 125μm or 250μm) that aligns and secures the optical fiber. Its primary functions are to provide dimensional stability, thermal resistance, low thermal expansion, and excellent surface finish to minimize insertion loss and back reflection in optical connections. It serves as the critical interface in connectors like FC, SC, LC, and MPO.

Working Principle

The ceramic body operates by providing a rigid, dimensionally stable housing with a precisely machined central bore. This bore aligns the optical fiber core with sub-micron accuracy to another fiber or optical device. Its low thermal expansion coefficient maintains alignment across temperature variations, while its hardness and wear resistance ensure repeated mating cycles without degradation. The smooth internal surface guides light with minimal scattering, and the external cylindrical geometry interfaces with connector housings and alignment sleeves.

Materials

Primary: Zirconia (ZrO2), typically yttria-stabilized zirconia (YSZ) with >99% purity. Alternative: Alumina (Al2O3) with 96-99.5% purity. Zirconia offers superior fracture toughness, flexural strength (~1000 MPa), and lower thermal expansion. Material specifications include density ≥6.0 g/cm³, grain size <0.5μm, and specific dopant concentrations for stabilization.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Length	5-15mm (standard)
Hardness	>1200 HV
Bore Diameter	125±0.5μm (single-mode), 250±1μm (multi-mode)
Concentricity	<1.0μm
Outer Diameter	2.499±0.0005mm
Surface Roughness	Ra <0.02μm (bore)
Thermal Expansion	10.5×10⁻⁶/K (zirconia)
Operating Temperature	-40°C to +85°C

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO/IEC 61754, IEC 61755, Telcordia GR-326, JIS C 5981

Parent Products

This component is used in the following industrial products

Precision Fiber Optic Ferrule

A precision fiber optic ferrule is a critical alignment component used in fiber optic connectors to ensure accurate positioning of optical fibers.

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Engineering Analysis

Risks & Mitigation

Bore cracking during fiber insertion
Thermal mismatch stress
Wear degradation after repeated mating
Contamination affecting optical surfaces
Dimensional drift due to humidity absorption

FMEA Triads

Trigger: Micro-cracks from abrasive machining
Failure: Fracture during assembly or thermal shock
Mitigation: Implement laser machining or diamond grinding with post-process annealing; apply non-destructive testing (NDT) like dye penetrant inspection.

Trigger: Inadequate sintering control
Failure: Porosity leading to reduced strength and moisture ingress
Mitigation: Optimize sintering temperature/time profiles; use hot isostatic pressing (HIP) for density >99.5%; conduct density and microstructure QC.

Trigger: Misalignment in bore drilling
Failure: High insertion loss and poor connector performance
Mitigation: Use precision CNC with real-time laser measurement; implement 100% concentricity testing; apply statistical process control (SPC) on bore geometry.

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

Geometric tolerances per ISO 1101: Bore diameter ±0.5μm, outer diameter ±0.0005mm, concentricity ≤1.0μm, surface finish Ra ≤0.02μm.

Test Method

Dimensional: Non-contact optical measurement (e.g., laser micrometer, vision systems). Mechanical: Hardness testing (Vickers). Optical: Insertion loss/return loss per IEC 61300-3-34. Environmental: Thermal cycling per Telcordia GR-1221.

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Ceramic Body

1 company lists this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

Xiamen Apollo Stamping Welding Technology Co., Ltd

Xiamen, Fujian, CN

Founded 2010200 staff

IATF16949:2016 ISO9000 oHS/Reach

Also makes: Copper Busbar, Battery Enclosure, Rechargeable Battery and 9 more

Listed on the company's own website · profile compiled by CNFX from public sources

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Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

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Frequently Asked Questions

Why is zirconia preferred over alumina for ceramic ferrule bodies?

Zirconia offers higher fracture toughness, better mechanical strength, and a closer thermal expansion match to glass fibers, reducing stress and signal loss under thermal cycling.

What are the critical tolerances for ceramic body bore diameter?

For single-mode fibers, bore diameter must be 125±0.5μm with concentricity under 1.0μm to ensure core alignment losses below 0.1 dB.

How does surface finish affect optical performance?

A surface roughness below 0.02μm minimizes light scattering and back reflection, critical for maintaining low insertion loss and high return loss in high-speed networks.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Ceramic Body