Zirconia Toughened Alumina ZTA Brick for Wear Liners

Where ZTA Bricks Are Used in Heavy-Wear Equipment

ZTA bricks are selected for equipment areas where abrasion, impact, particle flow and liner replacement cost must be controlled together. ADCERAX® can review the liner layout according to equipment geometry, wear map, material flow direction, impact angle and installation method.

• Mining & Mineral Processing – ZTA Brick for Mills and Chutes

  Key Advantages

  1. Suitable for grinding and slurry transfer zones
  ZTA bricks are suitable for ball mill feed ends, discharge ends, slurry transfer areas and high-impact chute zones. They are selected when standard alumina bricks may chip or crack under repeated ore impact, grinding media movement or abrasive slurry flow.

  2. Better balance between hardness and toughness
  The alumina phase supports abrasion resistance, while zirconia reinforcement improves toughness for impact-prone areas where sliding wear and mechanical shock occur together.

  Problem Solved

  In mining and mineral processing equipment, liner failure is often caused by the combined effect of ore impact, abrasive slurry flow and repeated shutdown cycles. ZTA bricks help reduce premature cracking, edge breakage and frequent liner replacement in selected high-wear sections.

• Steel & Bulk Material Handling – ZTA Brick Liners for Transfer Points

  Key Advantages

  1. Improved protection at concentrated impact points
  ZTA bricks can be used in transfer chutes, hoppers, bins and loading points where bulk materials strike the liner surface at concentrated angles.

  2. Suitable for replacing steel or standard alumina liners in selected zones
  Compared with steel liners, ZTA bricks provide stronger ceramic wear resistance. Compared with ordinary alumina tiles, ZTA bricks offer improved toughness where impact and vibration are difficult to avoid.

  Problem Solved

  Bulk material handling systems often suffer from liner wear, local impact damage and unplanned maintenance around transfer points. ZTA brick liners help protect the contact surface, reduce wear-related shutdown risk and support more predictable maintenance planning.

• Coal Power & Cement – ZTA Bricks in High-Wear Flow Paths

  Key Advantages

  1. Stable wear protection for dusty and abrasive flow conditions
  ZTA bricks are suitable for coal mills, classifier cones, cement mill inlets, clinker transfer chutes and ash-handling routes where abrasive particles move continuously across the liner surface.

  2. Better resistance in zones where abrasion and impact act together
  In cement and coal-handling systems, pure abrasion is not the only problem. Material drop, vibration and localized impact can also damage liner edges. ZTA bricks are selected when ordinary ceramic liners may not provide enough toughness.

  Problem Solved

  Coal and cement equipment often faces liner wear, dust loading, material buildup and limited shutdown windows. ZTA bricks help improve protection in high-wear flow paths and allow maintenance teams to review liner replacement based on wear location rather than emergency failure.

Zirconia Toughened Alumina Brick Usage Guide

• Installation

  1. Make sure the steel or concrete substrate is clean, dry and structurally stable before installation.
  2. Follow the adhesive, bolt or backing system required for the working condition.
  3. Keep brick joints staggered where possible to reduce continuous wear paths and local stress.

• Operation

  1. Bring the equipment up to operating load gradually after a full liner replacement.
  2. Avoid loose steel, oversize scrap or foreign objects entering the lined area.
  3. Inspect high-impact zones during scheduled shutdowns and record abnormal wear patterns.

• Storage

  1. Store ZTA bricks on flat pallets in dry indoor areas.
  2. Keep bricks separated to avoid edge chipping and ceramic-to-ceramic impact.
  3. Do not stack pallets beyond the approved packaging limit.

• Cleaning and inspection

  1. Use soft brushes or low-pressure air to remove dust in dry applications.
  2. In slurry systems, inspect during shutdown after flushing and drying the area.
  3. Record cracking, spalling or unusual wear, and compare it with impact points, particle size and operating load.

• Typical misuse and how to handle it

  1. Cracking near bolt holes may be caused by over-tightening or insufficient backing support. Reduce torque to the specified value and review hole spacing or support plates.

  2. Edge chipping at impact points may be caused by direct material drop or poor liner positioning. Adjust the impact layout or use a thicker ZTA brick in the first contact row.

  3. Adhesive debonding in wet conditions may be caused by moisture, poor surface cleaning or unsuitable adhesive. Clean and dry the substrate, then use an adhesive system suitable for the operating environment.

FAQ – Zirconia Toughened Alumina Brick

1. What is a ZTA brick?
   A ZTA brick is a zirconia toughened alumina ceramic brick used as a wear liner in equipment exposed to abrasion and impact. It combines alumina hardness with zirconia-reinforced toughness, making it suitable for ball mills, chutes, hoppers, transfer points and other heavy-wear zones.
2. How is ZTA brick different from standard alumina lining brick?
   Standard alumina lining brick provides strong hardness and abrasion resistance, while ZTA brick adds zirconia reinforcement to improve toughness and crack resistance. This makes ZTA more suitable for areas where impact, vibration or edge chipping is a concern.
3. Where are zirconia toughened alumina bricks commonly used?
   Zirconia toughened alumina bricks are commonly used in ball mill feed ends, discharge ends, chutes, hoppers, bins, coal mills, cement transfer points, classifier cones and other equipment sections where particles, slurry or bulk material create heavy wear.
4. Can ZTA bricks be made to match existing liner sizes?
   Yes. ADCERAX can review existing liner drawings, worn brick samples, equipment photos or layout dimensions to manufacture ZTA bricks with required length, width, thickness, chamfers, slots, holes, counterbores or backing structures.
5. Can ZTA bricks be bonded to rubber or steel backing?
   Yes. ZTA bricks can be supplied as loose ceramic bricks or integrated into rubber-backed, steel-backed or mechanically fastened liner modules. The suitable structure depends on impact load, temperature, vibration, installation space and replacement method.
6. What information is needed for a ZTA brick quotation?
   Please provide equipment type, handled material, particle size, impact location, working temperature, wet or dry condition, current liner material, required brick dimensions, fixing method and any drawings or photos of the existing wear area.

Information to Send for a ZTA Brick Quotation

Please include the equipment type, handled material, particle size, wet or dry condition, working temperature, impact location, existing liner material, required brick dimensions, installation method, drawing or worn liner photos, and target service-life problem if available.