Magnetic Materials TRIZ Cases

A sickle-shaped magnet arrangement generates a pure sine wave through segmented asymmetric geometry and controlled magnetization directions.

Pressure molding corrects NdFeB magnet dimensions before sintering, eliminating grinding waste and reducing thermal stress on equipment.

A core-shell microstructure localizes heavy rare earth elements in grain boundary shells to maintain coercivity.

Cobalt-enriched grain boundaries improve corrosion resistance in sintered neodymium-iron-boron magnets.

Strip casting followed by precise heat treatment yields uniform rare earth alloy flakes, resolving low component recovery in magnet pulverization.

A permanent magnet generates a magnetic field to guide electric arcs toward an interrupting chamber in DC circuit breakers.

A TbCu7 magnet material uses a grain boundary phase rich in niobium and boron to achieve high specific coercive force.

Iron-cobalt-chromium alloy improves machinability via manganese sulphide precipitates without deteriorating magnetic properties.

Iron aluminide medium uses plastic deformation to create localized magnetic regions for secure identification.

Zirconium and niobium form a hexagonal Laves phase in iron-cobalt-vanadium alloys to enhance mechanical strength.

A soft magnetic alloy containing niobium and tantalum achieves adjustable yield strength through controlled annealing.

Sintered R-T-B magnets undergo RH supply-diffusion in a controlled atmosphere to distribute heavy rare-earth elements.

Reactive wrapper sheets suppress oxide formation during heat treatment, maintaining high saturation magnetization in uncontrolled atmospheres.

Nickel strike plating prevents substitution reactions between iron and copper ions, maintaining magnet adhesiveness.

Silver, nickel, or gold additives in a rare-earth sintered magnet boost coercivity without reducing remanence, avoiding expensive dysprosium usage.

Grain boundary diffusion of heavy rare-earth compounds into sintered R-T-B magnets boosts coercivity while preserving remanence.

Low-temperature liquid-phase infiltration suppresses crystal grain coarsening, maintaining high coercivity without heavy rare-earth metals.

Controlling grain boundary triple points inhibits high temperature demagnetization without heavy rare earth elements.

Intermediate annealing and cold deformation limit permanent growth below 0.08% during magnetic annealing.

A superconducting magnet design incorporates a flow rate ratio maintaining mechanism to regulate helium gas circulation between pipes.

A permanent magnet material with reduced rare earth content achieves high magnetic energy product through controlled processing.

Core-shell R-T-B sintered magnet structure with selective rare earth distribution enhances magnetic coercivity.

Austenitic iron-nickel-chromium-copper alloy forms a stable oxide layer to protect against acidic corrosion.

A rare earth magnet composition stabilizes the 1-5 phase using specific molar ratios of cerium, lanthanum, and iron.

A soft magnetic alloy forms a nanohetero structure through controlled heat treatment of an amorphous phase.

Nd5Fe17 magnet structure balances main and sub phases to boost residual magnetization while maintaining coercivity.

Adding silicon and copper alongside nickel in R-T-B magnets maintains coercive force while improving corrosion resistance.

Preliminary machining of green compacts avoids surface stress damage during sintering, preserving magnetic properties.

A non-crystalline Ga-enriched phase within the R-rich region reduces reverse domain nucleation and stabilizes magnetic properties during manufacturing.

Sm-Co permanent magnet composition with Cu and Zr additions modifies demagnetization curve slope for precise magnetic force adjustment.

Controlling Nd5Fe17 grain size distribution prevents phase decomposition during sintering, maintaining coercivity and sintered density.

A rapidly quenched rare earth magnet alloy controls grain diameter and Nd-rich phase intervals to enhance magnetic properties.

Hard ceramic particulates reinforce amorphous steel matrices to impede shear band propagation and enhance ductility.

A core-shell microstructure in sintered magnets enhances coercivity through pinning effects.

Stacking CoFeV alloy sheets with varied texture orientations compensates for anisotropic dimensional changes during final annealing.

Opposing subcoil surface orientation minimizes conductor branch torsion, preserving superconducting layer stability and magnetic field generation.

A Fe-V-B-Si-P-Cu alloy composition stabilizes nano-crystalline structures to achieve high saturation magnetic induction.

Localizing heavy rare-earth elements at grain boundary triple points with copper reduces dysprosium content while maintaining high coercivity.

Stabilizing trivalent cerium in main phase grains achieves high coercivity and corrosion resistance without hydrogen addition.

Rapid heating of nanocrystalline alloy ribbons forms dispersed nanocrystals within an amorphous matrix to enhance soft magnetic properties.

FeMnSiBC amorphous alloy powder reduces iron loss by suppressing eddy currents and magnetostriction, enabling smaller high-capability magnetic devices.

Pressure crystallization aligns magnetic grains in bulk nanocomposites, boosting coercivity while reducing rare earth content.

A R-Fe-B sintered magnet forms a core-shell structure with an R-Fe(Co)-M1 grain boundary phase to achieve high coercivity.

A rare earth magnet uses an intermediate phase to segregate magnetic components and enhance coercive force.

An R-T-B permanent magnet structure featuring controlled grain boundaries with specific coverage ratios.

Stress annealing tunes magnetic anisotropy in cobalt-rich nanocomposites, overcoming low Curie temperatures of iron-based materials.

Low temperature pressure sintering reduces heavy rare earth consumption while maintaining coercivity and density.

A rare-earth magnet uses a three-layer protective film with alternating crystalline structures to enhance compactness.

A diffusion source alloy containing light rare-earth elements, iron, and heavy rare-earth elements enables efficient thermal diffusion into sintered magnets.